A relay switch which is actuated by the effect of internal heat generated by the current in its energizing circuit. For items actuated by ambient, rather than internal temperature changes, see SWITCH, THERMOSTATIC.
NAMEDITEM NAME
NOUN, WITH OR WITHOUT MODIFIERS, BY WHICH AN ITEM OF SUPPLY IS KNOWN.
Enter the item name code.
(NAMED03883*)
APFRDCONTACT ARRANGEMENT
THE DESIGNATION THAT IDENTIFIES THE SCHEMATIC DIAGRAM OF THE CONTACT CONFIGURATION.
Enter the applicable reply code from the table below
(APFRDBF*;APFRDCY$$DBG*)
| Table 1 |
| Reply Code (AD85) | Reply |
| BF | DOUBLE POLE, DOUBLE THROW |
| BE | DOUBLE POLE, SINGLE THROW, NORMALLY CLOSED |
| CX | DOUBLE POLE, SINGLE THROW, NORMALLY CLOSED, MANUAL RESET |
| BD | DOUBLE POLE, SINGLE THROW, NORMALLY OPEN |
| CK | SINGLE POLE, DOUBLE THROW |
| BG | SINGLE POLE, SINGLE THROW, NORMALLY CLOSED |
| CY | SINGLE POLE, SINGLE THROW, NORMALLY CLOSED, MANUAL RESET |
| CN | SINGLE POLE, SINGLE THROW, NORMALLY OPEN |
CYCS*JCONTACT MAXIMUM VOLTAGE RATING IN VOLTS
THE HIGHEST VOLTAGE AT WHICH THE CONTACTS ARE RATED FOR NORMAL OPERATING,EXPRESSED IN VOLTS.
Enter the applicable Reply Code from Table 1 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.
(CYCSJDC2.0*;CYCSJDC2.0$$JDC2.1*)
| Table 1 |
| Reply Code (AN87) | Reply |
| AC | AC |
| DC | DC |
CYCT*JCONTACT MAXIMUM CURRENT RATING IN AMPS
THE HIGHEST CURRENT AT WHICH THE CONTACTS ARE RATED FOR NORMAL OPERATION,EXPRESSED IN AMPS.
Enter the applicable Reply Code from Table 1 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.
(CYCTJAC2.0*;CYCTJAC2.0$JAC2.1*)
| Table 1 |
| Reply Code (AN87) | Reply |
| AC | AC |
| DC | DC |
CYCUBHEATER VOLTAGE RATING IN VOLTS
THE AMOUNT OF VOLTAGE FOR WHICH THE HEATER IS DESIGNED,EXPRESSED IN VOLTS.
Enter a reply with a minimum of one digit on either side of the decimal point.
(CYCUB2.0)
CYCVBHEATER POWER RATING IN WATTS
THE RATED POWER THAT THE HEATER CAN SAFELY CONSUME,MEASURED IN WATTS.
Enter a reply with a minimum of one digit on either side of the decimal point.
(CYCVB2.0)
CYCWJDELAY TIME IN SECONDS
A NUMERIC VALUE INDICATING THE ELAPSED TIME INTERVAL OF THE ITEM,EXPRESSED IN SECONDS.
Enter the applicable Reply Code from Tables 1 & 2 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.
(CYCWJCFA2.0*;CYCWJCFA2.0$$JCFA2.1*)
| Table 1 |
| Reply Code (AJ27) | Reply |
| CC | ADJUSTABLE OPERATE |
| CD | ADJUSTABLE OPERATE AND RELEASE |
| CE | ADJUSTABLE RELEASE |
| CF | FIXED OPERATE |
| CG | FIXED OPERATE AND RELEASE |
| CH | FIXED RELEASE |
| Table 2 |
| Reply Code (AC20) | Reply |
| A | NOMINAL |
| B | MINIMUM |
| C | MAXIMUM |
CBBL*DFEATURES PROVIDED
THOSE FEATURES,NOT OTHERWISE SPECIFIED,WHICH MAY BE REQUIRED FOR PROPER FUNCTIONING OF THE ITEM.
Enter the applicable reply code from the table below
(CBBLDACT*;CBBLDFNY$$DADQ*)
| Table 1 |
| Reply Code (AN47) | Reply |
| ACT | AUTOMATIC RESET |
| ADQ | MANUAL RESET BUTTON |
| FNY | ROHS DIRECTIVE COMPLIANCE |
| ABM | TERMINAL COVERS |
TTQYJTERMINAL TYPE AND QUANTITY
INDICATES THE TYPE AND NUMBER OF TERMINALS FOR PROVIDING ELECTRICAL CONNECTION.
Enter the applicable Reply Code from Table 1 below followed by a numeric reply with a minimum of one digit.
(TTQYJABD2*;TTQYJABD2$$JABD3*)
| Table 1 |
| Reply Code (AN89) | Reply |
| AAB | BANANA PLUG |
| ABL | BINDING POST |
| ACN | CONNECTOR, PLUG |
| AAF | CONNECTOR, RECEPTACLE |
| AAM | PIN |
| ACR | PRINTED CIRCUIT |
| ADA | QUICK DISCONNECT, FEMALE |
| ACZ | QUICK DISCONNECT, MALE |
| ABQ | SCREW |
| AAS | SOLDER STUD |
| ABX | TAB W/SCREW |
| ABB | TAB, SOLDER LUG |
| ABD | THREADED STUD |
| ACB | TURRET |
| ACM | WIRE HOOK |
| ACC | WIRE LEAD |
| ACD | WIRE LOOP |
AXHRJMOUNTING FACILITY TYPE AND QUANTITY
INDICATES THE TYPE AND NUMBER OF FACILITIES BY WHICH THE ITEM IS MOUNTED.
Enter the applicable Reply Code from Table 1 below followed by a numeric reply with a minimum of one digit.
(AXHRJAEC2*;AXHRJAEC2$$JAEC3*)
| Table 1 |
| Reply Code (AM39) | Reply |
| ABH | CLAMP |
| AEC | CLINCH NUT |
| AMF | COUPLING RING |
| APC | OCTAL BASE PLUG-IN |
| ABP | PLUG-IN |
| BRQ | PRINTED CIRCUIT TERMINAL |
| BCX | SLOTTED HOLE |
| AFA | THREADED BUSHING |
| AHF | THREADED HOLE |
| AET | THREADED STUD |
| ACQ | UNTHREADED HOLE |
| AEW | UNTHREADED STUD |
ABHP*JOVERALL LENGTH
THE DIMENSION MEASURED ALONG THE LONGITUDINAL AXIS WITH TERMINATED POINTS AT THE EXTREME ENDS OF THE ITEM.
Enter the applicable Reply Code from Tables 1 & 2 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.
(ABHPJAC2.0*;ABHPJAC2.0$$JAC2.1*)
| Table 1 |
| Reply Code (AA05) | Reply |
| A | INCHES |
| L | MILLIMETERS |
| Table 2 |
| Reply Code (AC20) | Reply |
| A | NOMINAL |
| B | MINIMUM |
| C | MAXIMUM |

Reference NotesRefer to Reference Drawing for Typical Dimensional Illustration.
Refer to Reference Drawings for assitance in answering this MRC.
ABMK*JOVERALL WIDTH
AN OVERALL MEASUREMENT TAKEN AT RIGHT ANGLES TO THE LENGTH OF AN ITEM,IN DISTINCTION FROM THICKNESS.
Enter the applicable Reply Code from Tables 1 & 2 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.
(ABMKJAC2.0*;ABMKJAC2.0$$JAC2.1*)
| Table 1 |
| Reply Code (AA05) | Reply |
| A | INCHES |
| L | MILLIMETERS |
| Table 2 |
| Reply Code (AC20) | Reply |
| A | NOMINAL |
| B | MINIMUM |
| C | MAXIMUM |

Reference NotesRefer to Reference Drawings for assitance in answering this MRC.
ABKW*JOVERALL HEIGHT
THE DISTANCE MEASURED IN A STRAIGHT LINE FROM THE BOTTOM TO THE TOP OF AN ITEM.
Enter the applicable Reply Code from Tables 1 & 2 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.
(ABKWJAC2.0*;ABKWJAC2.0$$JAC2.1*)
| Table 1 |
| Reply Code (AA05) | Reply |
| A | INCHES |
| L | MILLIMETERS |
| Table 2 |
| Reply Code (AC20) | Reply |
| A | NOMINAL |
| B | MINIMUM |
| C | MAXIMUM |

Reference NotesRefer to Reference Drawings for assitance in answering this MRC.
ADAV*JOVERALL DIAMETER
A MEASUREMENT OF THE LONGEST STRAIGHT LINE ACROSS A CIRCULAR CROSS-SECTIONAL PLANE.
Enter the applicable Reply Code from Tables 1 & 2 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.
(ADAVJAA2.0*;ADAVJAA2.0$$JAA2.1*)
| Table 1 |
| Reply Code (AA05) | Reply |
| A | INCHES |
| L | MILLIMETERS |
| Table 2 |
| Reply Code (AC20) | Reply |
| A | NOMINAL |
| B | MINIMUM |
| C | MAXIMUM |
AFGA*JOPERATING TEMP RANGE
THE MINIMUM AND MAXIMUM LIMITS OF TEMPERATURE AT WHICH THE ITEM IS RATED FOR OPERATION.
Enter the applicable Reply Code from Table 1 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit. Precede negative values (below zero degrees) with the letter M, and positive values (zero and above) with the letter P.
(AFGAJKM32.0/P50.0*)
| Table 1 |
| Reply Code (AB36) | Reply |
| C | CELSIUS |
| F | FAHRENHEIT |
| K | KELVIN |
AFJQ*JSTORAGE TEMP RANGE
THE MINIMUM AND MAXIMUM TEMPERATURES AT WHICH AN ITEM CAN BE STORED WITHOUT DETRIMENTAL EFFECT.
Enter the applicable Reply Code from Table 1 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit. Precede negative values (below zero degrees) with the letter M, and positive values (zero and above) with the letter P.
(AFJQJKM32.0/P50.0*)
| Table 1 |
| Reply Code (AB36) | Reply |
| C | CELSIUS |
| F | FAHRENHEIT |
| K | KELVIN |
ADZC*DENVIRONMENTAL PROTECTION
THE ENVIRONMENTAL ELEMENTS OR CONDITIONS THAT AN ITEM IS DESIGNED OR PROTECTED TO RESIST OR WITHSTAND SATISFACTORILY.
Enter the applicable reply code from the table below
(ADZCDABJ*;ADZCDAAE$$DABT*)
| Table 1 |
| Reply Code (AA65) | Reply |
| ADC | AIRTIGHT |
| ACB | COLD RESISTANT |
| ACY | CORROSION PROOF |
| AAC | CORROSION RESISTANT |
| AAD | DRIPPROOF |
| ACZ | DUST TIGHT |
| AAE | DUSTPROOF |
| ADA | EROSION PROOF |
| AAG | EXPLOSION PROOF |
| AAJ | FIRE RESISTANT |
| AAM | FUNGUS PROOF |
| AAN | FUNGUS RESISTANT |
| AAP | HEAT RESISTANT |
| ADB | HERMETIC |
| ABP | HUMIDITY PROOF |
| AAR | HUMIDITY RESISTANT |
| ADL | SALT SPRAY PROOF |
| ABQ | SALT SPRAY RESISTANT |
| ABA | SALT WATER RESISTANT |
| ABB | SAND PROOF |
| ABD | SHOCK PROOF |
| ABE | SHOCK RESISTANT |
| ABR | SPLASH PROOF |
| ABT | SPRAY TIGHT |
| ABW | SUBMERSIBLE |
| ABH | VIBRATION PROOF |
| ABJ | VIBRATION RESISTANT |
| ACM | WATER RESISTANT |
| ABL | WATERTIGHT |
| ADD | WINDPROOF |
PMLC*JPRECIOUS MATERIAL AND LOCATION
AN INDICATION OF THE PRECIOUS MATERIAL AND ITS LOCATION IN THE ITEM.
Enter the applicable Reply Code from Table 1 below followed by a alpha-numeric reply with a minimum of one character.
(PMLCJPTA0002.0*;PMLCJPTA0002.0$JPTA0002.0*;PMLCJPTA0002.0$$JPTA0002.1*)
| Table 1 |
| Reply Code (MA01) | Reply |
| AUA000 | GOLD |
| IRA000 | IRIDIUM |
| AZA000 | OSMIUM |
| PDA000 | PALLADIUM |
| PTA000 | PLATINUM |
| RHA000 | RHODIUM |
| RTA000 | RUTHENIUM |
| AGA000 | SILVER |
FEAT*GSPECIAL FEATURES
THOSE UNUSUAL OR UNIQUE CHARACTERISTICS OR QUALITIES OF AN ITEM NOT COVERED IN THE OTHER REQUIREMENTS AND WHICH ARE DETERMINED TO BE ESSENTIAL FOR IDENTIFICATION ON ONE OR MORE OTHER FUNCTIONS.
Enter the reply in clear text. Separate multiple replies with a semicolon.
(FEATGADJUSTABLE NOSE CLIP*; FEATGADJUSTABLE NOSE PIECE; DISPOSABLE*)
TEST*JTEST DATA DOCUMENT
THE SPECIFICATION,STANDARD,DRAWING,OR SIMILAR INSTRUMENT THAT SPECIFIES ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS OR TEST CONDITIONS UNDER WHICH AN ITEM IS TESTED AND ESTABLISHES ACCEPTABLE LIMITS WITHIN WHICH THE ITEM MUST CONFORM IDENTIFIED BY AN ALPHABETIC AND/OR NUMERIC REFERENCE NUMBER. INCLUDES THE COMMERCIAL AND GOVERNMENT ENTITY (CAGE) CODE OF THE ENTITY CONTROLLING THE INSTRUMENT.
Enter the applicable Reply Code from the table below, followed by the 5-position CAGE Code, a dash, and the document identification number.
(TESTJA12345-CWX654321*; TESTJA1234A-654321$$JB5556A-663654*; TESTJAA2345-654321$JB55566-663654*)
| Table 1 |
| Reply Code (AC28) | Reply |
| A | SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| B | STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). |
| C | DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
ZZZK*JSPECIFICATION/STANDARD DATA
THE DOCUMENT DESIGNATOR OF THE SPECIFICATION OR STANDARD WHICH ESTABLISHED THE ITEM OF SUPPLY.
Enter the applicable Reply Code from the table below, followed by the Commercial and Government Entity (CAGE) Code of the entity controlling the document, a dash, and the document designator. The agency that controls the limited coordination document must be preceded and followed by a slash following the designator. The word canceled or superseded must be preceded and followed by a slash for the designator. Professional and industrial association specifications/standards are differentiated from a manufacturer's specification in that the data has been coordinated and published by the professional and industrial association. Include amendments and revisions where applicable.
(ZZZKJT81337-30642B*;ZZZKJS81349-MIL-D-180 REV1/CANCELED/*;ZZZKJP80205-NAS1103*;ZZZKJS81349-MIL-C-1140C/CE/*;ZZZKJT81337-30642B$$JP80205-NAS1103*)
| Table 1 |
| Reply Code (AN62) | Reply |
| S | GOVERNMENT SPECIFICATION |
| T | GOVERNMENT STANDARD |
| D | MANUFACTURERS SOURCE CONTROL |
| R | MANUFACTURERS SPECIFICATION |
| N | MANUFACTURERS SPECIFICATION CONTROL |
| M | MANUFACTURERS STANDARD |
| B | NATIONAL STD/SPEC |
| A | PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| P | PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
If the specification/standard cited in reply to MRC ZZZK is nondefinitive, reply to MRC ZZZT. This reply is the data which is not recorded in Segment C.
ZZZT*JNONDEFINITIVE SPEC/STD DATA
THE NUMBER, LETTER, OR SYMBOL INDICATING THE TYPE, STYLE, GRADE, CLASS, AND THE LIKE OF AN ITEM IN A NONIDENTIFYING SPECIFICATION OR STANDARD.
Enter the applicable Reply Code from the table below followed by the appropriate number, letter or symbol.
(ZZZTJTY1*; ZZZTJTY1$$JSTA*; ZZZTJTY1$JSTA*)
| Table 1 |
| Reply Code (AD08) | Reply |
| AL | ALLOY |
| AN | ANNEX |
| AP | APPENDIX |
| AC | APPLICABILITY CLASS |
| AR | ARRANGEMENT |
| AS | ASSEMBLY |
| AB | ASSORTMENT |
| BX | BOX |
| CY | CAPACITY |
| CA | CASE |
| CT | CATEGORY |
| CL | CLASS |
| CE | CODE |
| CR | COLOR |
| CC | COMBINATION CODE |
| CN | COMPONENT |
| CP | COMPOSITION |
| CM | COMPOUND |
| CD | CONDITION |
| CS | CONSTRUCTION |
| DE | DESIGN |
| DG | DESIGNATOR |
| DW | DRAWING NUMBER |
| EG | EDGE |
| EN | END |
| FY | FAMILY |
| FG | FIGURE |
| FN | FINISH |
| FM | FORM |
| FA | FORMULA |
| GR | GRADE |
| GP | GROUP |
| BA | IMAGE COLOR |
| NS | INSERT |
| TM | ITEM |
| KD | KIND |
| KT | KIT |
| LG | LENGTH |
| LT | LIMIT |
| MK | MARK |
| AA | MARKER |
| ML | MATERIAL |
| BB | MAXIMUM DENSITY |
| MH | MESH |
| ME | METHOD |
| BC | MINIMUM DENSITY |
| MD | MODEL |
| MT | MOUNTING |
| NR | NUMBER |
| PT | PART |
| PN | PATTERN |
| PC | PHYSICAL CONDITION |
| PS | PIECE |
| PL | PLAN |
| PR | POINT |
| QA | QUALITY |
| RN | RANGE |
| RT | RATING |
| RF | REFERENCE NUMBER |
| SC | SCHEDULE |
| SB | SECTION |
| SL | SELECTION |
| SE | SERIES |
| SV | SERVICE |
| SX | SET |
| SA | SHADE |
| SH | SHAPE |
| SG | SHEET |
| SZ | SIZE |
| PZ | SPECIES |
| SQ | SPECIFICATION SHEET |
| SD | SPEED |
| ST | STYLE |
| SS | SUBCLASS |
| SF | SUBFORM |
| SP | SUBTYPE |
| SN | SURFACE CONDITION |
| SY | SYMBOL |
| SM | SYSTEM |
| TB | TABLE |
| TN | TANNAGE |
| TP | TEMPER |
| TX | TEXTURE |
| TK | THICKNESS |
| TT | TREATMENT |
| TR | TRIM |
| TY | TYPE |
| YN | UNIT |
| VA | VARIETY |
| WT | WEIGHT |
| WD | WIDTH |
ZZZY*GREFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS
A FEATURE OF THE ITEM OF SUPPLY WHICH MUST BE SPECIFICALLY RECORDED WHEN THE REFERENCE NUMBER COVERS A RANGE OF ITEMS.
Enter the reply in clear text.
(ZZZYGCOLOR CODED LEADS*; ZZZYGAS DIFFERENTIATED BY MATERIAL*)
Reply to this requirement only if the header record for the item identification for the item being identified has been coded as critical.
CRTL*ACRITICALITY CODE JUSTIFICATION
THE MASTER REQUIREMENT CODES OF THOSE REQUIREMENTS WHICH ARE TECHNICALLY CRITICAL BY REASON OF TOLERANCE,FIT,PERFORMANCE,OR OTHER CHARACTERISTICS WHICH AFFECT IDENTIFICATION OF THE ITEM.
Enter the Master Requirement Code for the requirement, the reply to which renders the item as being critical.
(CRTLAAKJA*; CRTLAAKJA$$ACSGS*)
If document availability code B, D, F, OR H, reply to MRC PRPY.
PRPY*APROPRIETARY CHARACTERISTICS
IDENTIFICATION OF THOSE CHARACTERISTICS INCLUDED IN THE DESCRIPTION FOR WHICH A NON-GOVERNMENT ACTIVITY HAS IDENTIFIED ALL OR SELECTED CHARACTERISTICS OF THE ITEM AS BEING PROPRIETARY AND THEREFORE RESTRICTED FROM RELEASE OUTSIDE THE GOVERNMENT WITHOUT PRIOR PERMISSION OF THE ORIGINATOR OF THE DATA.
Enter the MRC codes of the individual characteristics of the description which are marked proprietary on the technical data, using and coding ($) for multiple characteristics. If all the MRCS are proprietary, enter the reply PACS. If none of the MRCS is proprietary, enter the reply NPAC.
(PRPYAPACS*;PRPYANPAC*; PRPYAMATL$$ASURF*)
ELRN*GEXTRA LONG REFERENCE NUMBER
A REFERENCE NUMBER EXCEEDING 32 POSITIONS.
Enter the entire reference number. Do not include the 5-position Commercial and Government Entity (CAGE) Code unless there is more than one extra long reference number on the NSN.If there is more than one extra long reference number on the NSN, include the CAGE or NCAGE and separate each reference by using the "&" character.
(e.g., CAGE112036BIL060557LEN313605UZ62365 & CAGE112036BIL060557LEN313605UZ62365)
In determining quantity of characters in the reference number, count will be made after modification in accordance with Volume 2, Chapter 9, FLIS Procedures Manual, DoD 4100.39-M.
NHCF*DNUCLEAR HARDNESS CRITICAL FEATURE
AN INDICATION OF THE NUCLEAR HARDNESS CRITICALITY OF THE ITEM.
Enter the applicable reply code from the table below
(NHCFDCY)
| Table 1 |
| Reply Code (AD05) | Reply |
| CY | HARDENED |
Reply to this MRC in accordance with Volume 3.
AGAV*GEND ITEM IDENTIFICATION
THE NATIONAL STOCK NUMBER OR THE IDENTIFICATION INFORMATION OF THE END EQUIPMENT FOR WHICH THE ITEM IS A PART.
Enter the reply in clear text.
(AGAVG3930-00-000-0000*; AGAVGFORKLIFT TRUCK, SMITH CORPORATION, MODEL 12, TYPE A*)
CXCY*GPART NAME ASSIGNED BY CONTROLLING AGENCY
THE NAME ASSIGNED TO THE ITEM BY THE GOVERNMENT AGENCY OR COMMERCIAL ORGANIZATION CONTROLLING THE DESIGN OF THE ITEM.
Enter the reply in clear text.
(CXCYGLINE PROCESSOR CONTROL BOARD*)
CLQL*GCOLLOQUIAL NAME
A COMMON USAGE NAME BY WHICH AN ITEM IS KNOWN.
Enter the reply in clear text.
(CLQLGWOVEN WIRE CLOTH*)