A circular shaped item with an aperture manufactured to predetermined dimensions, constructed with a rectangular cross section that may be solid, with joint, or in a helical form that facilitates spiral wrap installation. It prevents seal extrusion under pressure and is designed to fit on the down-pressure side of a gland groove with a PACKING, PREFORMED or O-RING.
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5330Packing and Gasket Materials
expandColloquial Information
G4418BACKUP RING
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NAMEDITEM NAME
NOUN, WITH OR WITHOUT MODIFIERS, BY WHICH AN ITEM OF SUPPLY IS KNOWN.
Enter the item name code.
(NAMED66949*)
MATTDMATERIAL
THE CHEMICAL COMPOUND OR MECHANICAL MIXTURE PROPERTIES OF WHICH THE ITEM IS FABRICATED.
Enter the applicable reply code from the table below
(MATTDRCB000*;MATTDPCA000$$DRC0014*)
Table 1
Reply Code (MA01)Reply
CNA000CARBON
CNB000CARBON GRAPHITE
CUB000COPPER ALLOY
GSB000GLASS FIBER
LRA000LEATHER
PCA000PLASTIC
PCD000PLASTIC ACRYLIC
PCBR00PLASTIC FLUORINATED ETHYLENE PROPYLENE
PCP000PLASTIC POLYAMIDE
PCW000PLASTIC POLYESTER
PCAF00PLASTIC POLYTETRAFLUOROETHYLENE
PCAR00PLASTIC POLYTRIFLUOROETHYLENE
PCAH00PLASTIC POLYURETHANE
PCBA00PLASTIC URETHANE
RCE000RUBBER
RC0019RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
RCT000RUBBER BUTYL
RC0009RUBBER ETHYLENE-PROPYLENE CLASS EPM
RC0010RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM
RC0014RUBBER FLUOROSILICONE CLASS FQ
RCAC00RUBBER NEOPRENE
RC0001RUBBER POLYACRYLATE CLASS ACM
RC0002RUBBER POLYACRYLATE-ACRYLONITRILE CLASS ANM
RCY000RUBBER POLYCHLOROPRENE
RC0021RUBBER SILICONE CLASS Q
RCB000RUBBER SYNTHETIC
Reply to this requirement only if the MRC for Material has been answered and there is additional standard specifications that need to be identified on the Material reply.
MDCL*JMATERIAL DOCUMENT AND CLASSIFICATION
THE SPECIFICATION, STANDARD, OR MANUFACTURER'S REFERENCE AND THE CLASSIFICATION DESIGNATION, SUCH AS CLASS, CONDITION, TEMPER, AND THE LIKE, THAT IDENTIFIES THE MATERIAL.
Enter the applicable Reply Code from Tables 1 & 2 below followed by an alpha-numeric reply with a minimum of one character as in the first, second, and third examples. If ISAC coding is authorized for this requirement, enter the applicable ISAC from Table 1 below followed by the mode code and applicable Reply Code from Tables 2 & 3 below followed by an alpha-numeric reply with a minimum of one character as in the fourth, fifth, and sixth examples.
(MDCLJEATEXT1234*;MDCLJEATEXT1234$$JEATEXT1234*;MDCLJEATEXT1234$JEATEXT1234*;MDCL1BJEATEXT1234*;MDCL1BJEATEXT1234$$JEATEXT1234*;MDCL1BJEATEXT1234$JEATEXT1234*)
Table 1
Reply Code (AP33)Reply
GASSN STD
BFED SPEC
CFED STD
FMFR REF
DMIL SPEC
EMIL STD
HNATIONAL SPEC
Table 2
Reply Code (AP18)Reply
B1ST MATERIAL RESPONSE
C2ND MATERIAL RESPONSE
D3RD MATERIAL RESPONSE
E4TH MATERIAL RESPONSE
F5TH MATERIAL RESPONSE
GALL MATERIAL RESPONSES
ASINGLE MATERIAL RESPONSE
CQFM*JHARDNESS RATING
A NUMERIC VALUE THAT REFLECTS THE HARDNESS OF AN ITEM WHEN USED IN CONJUNCTION WITH A HARDNESS RATING SCALE.
Enter the applicable Reply Code from Tables 1 & 2 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.
(CQFMJRHB2.0*;CQFMJRHB2.0$$JRHB2.1*)
Table 1
Reply Code (AC26)Reply
RHINTERNATIONAL RUBBER HARDNESS DEGREE SCALE
PSPLASTOMETER SCALE
SASHORE DUROMETER A
SMSHORE DUROMETER A-2
SBSHORE DUROMETER B
SESHORE DUROMETER C
SDSHORE DUROMETER D
SCSHORE SCLEROSCOPE
Table 2
Reply Code (AC20)Reply
ANOMINAL
BMINIMUM
CMAXIMUM
ABJH*JTEMP RATING
A VALUE WHICH EXPRESSES THE DEGREE OF HEAT OR COLD AS APPLIED TO THE OPERATION,OR LIMITATION OF OPERATION,OF AN ITEM.
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 as in the first and second examples.For negative temperature values, precede the numeric portion of the reply with the letter “M” as in the third and fourth examples.If ISAC coding is authorized for this requirement and one or more of the temperature values in negative, enter the applicable ISAC from Table 1 below followed by the mode code and applicable Reply Code from Table 2 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.Also precede the numeric portion of the reply with the letter “M” as in the fifth and sixth examples.
(ABJHJF68.0*; ABJHJC0.0$$JC35.0*; ABJHJFCM15.0*; ABJHJFM40.0$$JF75.0*; ABJH1BJFM25.0*; ABJH1BJCM35.0$$JCM5.0*)
Table 1
Reply Code (AB36)Reply
CCELSIUS
FFAHRENHEIT
IF STYLE/REPLY CODE(s) 1, 2, 3 OR 4 WERE ENTERED FOR MRC AAGR, YOU MUST ANSWER MRC (ADYU and ADYT and ADVN)
IF STYLE/REPLY CODE(s) 5 OR 6 WERE ENTERED FOR MRC AAGR, YOU MUST ANSWER MRC (ADYU and ADYT and ADVM and ADVN)
AAGRLCROSS-SECTIONAL SHAPE STYLE
THE STYLE DESIGNATION INDICATING THE CONFIGURATION THAT MOST NEARLY CORRESPONDS TO THE CROSS-SECTIONAL SHAPE OF THE ITEM.
Review the representative drawings below, find the drawing which best represents your item.Use the Physical Drawing ID (eg: AAT1001) to identify the row(s) in the table which are applicable to your drawing.Enter the applicable reply code from the table below.
(AAGRL6)
Table 1
Physical Drawing IDReply Code (STYL)Reply
DQ011831SOLID
DQ011842SINGLE TURN SPIRAL
DQ011853CONTOURED FACE SOLID
DQ011864CONTOURED FACE SINGLE TURN SPIRAL
DQ011875DOUBLE SPIRAL
DQ0118863-TURN SPIRAL
FEAT*GSPECIAL FEATURES
THOSE UNUSUAL OR UNIQUE CHARACTERISTICS OR QUALITIES OF AN ITEM NOT COVERED IN THE OTHER REQUIREMENTS AND WHICH ARE DETERMINED TO BE ESSENTIAL FOR IDENTIFICATION ON ONE OR MORE OTHER FUNCTIONS.
Enter the reply in clear text. Separate multiple replies with a semicolon.
(FEATGADJUSTABLE NOSE CLIP*; FEATGADJUSTABLE NOSE PIECE; DISPOSABLE*)
TEST*JTEST DATA DOCUMENT
THE SPECIFICATION,STANDARD,DRAWING,OR SIMILAR INSTRUMENT THAT SPECIFIES ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS OR TEST CONDITIONS UNDER WHICH AN ITEM IS TESTED AND ESTABLISHES ACCEPTABLE LIMITS WITHIN WHICH THE ITEM MUST CONFORM IDENTIFIED BY AN ALPHABETIC AND/OR NUMERIC REFERENCE NUMBER. INCLUDES THE COMMERCIAL AND GOVERNMENT ENTITY (CAGE) CODE OF THE ENTITY CONTROLLING THE INSTRUMENT.
Enter the applicable Reply Code from the table below, followed by the 5-position CAGE Code, a dash, and the document identification number.
(TESTJA12345-CWX654321*; TESTJA1234A-654321$$JB5556A-663654*; TESTJAA2345-654321$JB55566-663654*)
Table 1
Reply Code (AC28)Reply
ASPECIFICATION (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.).
BSTANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
CDRAWING (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$$JP80205-NAS1103*)
Table 1
Reply Code (AN62)Reply
SGOVERNMENT SPECIFICATION
TGOVERNMENT STANDARD
DMANUFACTURERS SOURCE CONTROL
RMANUFACTURERS SPECIFICATION
NMANUFACTURERS SPECIFICATION CONTROL
MMANUFACTURERS STANDARD
BNATIONAL STD/SPEC
APROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
PPROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
If the specification/standard cited in reply to MRC ZZZK is nondefinitive, reply to MRC ZZZT. This reply is the data which is not recorded in Segment C.
ZZZT*JNONDEFINITIVE SPEC/STD DATA
THE NUMBER, LETTER, OR SYMBOL INDICATING THE TYPE, STYLE, GRADE, CLASS, AND THE LIKE OF AN ITEM IN A NONIDENTIFYING SPECIFICATION OR STANDARD.
Enter the applicable Reply Code from the table below followed by the appropriate number, letter or symbol.
(ZZZTJTY1*; ZZZTJTY1$$JSTA*; ZZZTJTY1$JSTA*)
Table 1
Reply Code (AD08)Reply
ALALLOY
ANANNEX
APAPPENDIX
ACAPPLICABILITY CLASS
ARARRANGEMENT
ASASSEMBLY
ABASSORTMENT
BXBOX
CYCAPACITY
CACASE
CTCATEGORY
CLCLASS
CECODE
CRCOLOR
CCCOMBINATION CODE
CNCOMPONENT
CPCOMPOSITION
CMCOMPOUND
CDCONDITION
CSCONSTRUCTION
DEDESIGN
DGDESIGNATOR
DWDRAWING NUMBER
EGEDGE
ENEND
FYFAMILY
FGFIGURE
FNFINISH
FMFORM
FAFORMULA
GRGRADE
GPGROUP
BAIMAGE COLOR
NSINSERT
TMITEM
KDKIND
KTKIT
LGLENGTH
LTLIMIT
MKMARK
AAMARKER
MLMATERIAL
BBMAXIMUM DENSITY
MHMESH
MEMETHOD
BCMINIMUM DENSITY
MDMODEL
MTMOUNTING
NRNUMBER
PTPART
PNPATTERN
PCPHYSICAL CONDITION
PSPIECE
PLPLAN
PRPOINT
QAQUALITY
RNRANGE
RTRATING
RFREFERENCE NUMBER
SCSCHEDULE
SBSECTION
SLSELECTION
SESERIES
SVSERVICE
SXSET
SASHADE
SHSHAPE
SGSHEET
SZSIZE
PZSPECIES
SQSPECIFICATION SHEET
SDSPEED
STSTYLE
SSSUBCLASS
SFSUBFORM
SPSUBTYPE
SNSURFACE CONDITION
SYSYMBOL
SMSYSTEM
TBTABLE
TNTANNAGE
TPTEMPER
TXTEXTURE
TKTHICKNESS
TTTREATMENT
TRTRIM
TYTYPE
YNUNIT
VAVARIETY
WTWEIGHT
WDWIDTH
ZZZW*GDEPARTURE FROM CITED DOCUMENT
THE TECHNICAL DIFFERENTIATING CHARACTERISTIC(S) OF AN ITEM OF SUPPLY THAT DEPART(S) FROM THE TEXT OF A SPECIFICATION OR A STANDARD IN THAT IT REPRESENTS A SELECTION OF CHARACTERISTICS STATED IN THE SPECIFICATION OR STANDARD AS BEING OPTIONAL OR A VARIATION FROM ONE OR MORE OF THE STATED CHARACTERISTICS OR AN ADDITIONAL CHARACTERISTIC NOT STATED IN THE SPECIFICATION OR STANDARD.
Enter the reply in clear text.
(ZZZWGAS MODIFIED BY MATERIAL*)
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.
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*)
ZZZV*GFSC APPLICATION DATA
THE JUSTIFICATION FOR THE ASSIGNMENT OF A FEDERAL SUPPLY CLASS /FSC/ TO AN ITEM BASED ON THE CLASSIFICATION OF THE NEXT HIGHER CLASSIFIABLE ASSEMBLY.
Enter the name of the next higher classifiable assembly in clear text.
(ZZZVGFUEL SYSTEM, GASOLINE ENGINE, NONAIRCRAFT*)
RDAL*GREFERENCE DATA AND LITERATURE
LITERATURE AND REFERENCES AVAILABLE FOR INFORMATION PERTAINING TO THE ITEM.
Enter data appropriate and in a concise manner to identify informational references covering the item.
(RDALGNAAVAIROIA/VFK58 A-2.2.9*)
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*)
HZRD*DHAZARDOUS SUBSTANCES
THE SUBSTANCES AND/OR MATERIALS CONTAINED IN THE ITEM THAT HAVE BEEN IDENTIFIED AS HAZARDOUS OR ENVIRONMENTALLY DAMAGING BY THE ENVIRONMENTAL PROTECTION AGENCY OR OTHER AUTHORIZED GOVERNMENT AGENCY.
Enter the applicable reply code from the table below
(HZRDDHAZ092*;HZRDDHAZ265$$DHAZ030*)
Table 1
Reply Code (HZ00)Reply
HAZ042ASBESTOS
HAZ007ASPHALT
HAZ012COPPER
HAZ210GOLD
HAZ211GREASE
HAZ222IRON
HAZ029LEAD
HAZ092MAGNESIUM
HAZ030MAGNESIUM ALLOY
HAZ252NICKEL
HAZ265OIL
HAZ285PLASTIC
HAZ303SILVER
HAZ052ZINC
ADVM*JCROSS-SECTIONAL THICKNESS
A MEASUREMENT OF THE SMALLEST DIMENSION OF A CROSS SECTION,IN DISTINCTION FROM LENGTH OR WIDTH.
Enter the applicable Reply Code from Tables 1 & 2 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.
(ADVMJAB2.0*;ADVMJAB2.0$$JAB2.1*)
Table 1
Reply Code (AA05)Reply
AINCHES
LMILLIMETERS
Table 2
Reply Code (AC20)Reply
ANOMINAL
BMINIMUM
CMAXIMUM
ADVN*JCROSS-SECTIONAL HEIGHT
A MEASUREMENT FROM THE BOTTOM TO THE TOP OF A CROSS SECTION,IN DISTINCTION FROM DEPTH.
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.
(ADVNJAA2.0*;ADVNJAA2.0$$JAA2.1*)
Table 1
Reply Code (AA05)Reply
AINCHES
LMILLIMETERS
Table 2
Reply Code (AC20)Reply
ANOMINAL
BMINIMUM
CMAXIMUM
ADYT*JCENTER HOLE DIAMETER
THE LENGTH OF A STRAIGHT LINE WHICH PASSES THROUGH THE CENTER OF THE CENTER HOLE,AND TERMINATES AT THE CIRCUMFERENCE.
Enter the applicable Reply Code from Tables 1 & 2 below followed by a numeric reply with a minimum of one digit, a decimal and a minimum of one digit.
(ADYTJAC2.0*;ADYTJAC2.0$$JAC2.1*)
Table 1
Reply Code (AA05)Reply
AINCHES
LMILLIMETERS
Table 2
Reply Code (AC20)Reply
ANOMINAL
BMINIMUM
CMAXIMUM
ADYU*JPERIPHERAL DIAMETER
A MEASUREMENT OF A STRAIGHT LINE FROM THE CENTER OF THE ITEM TO THE PERIPHERY 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.
(ADYUJAB2.0*;ADYUJAB2.0$$JAB2.1*)
Table 1
Reply Code (AA05)Reply
AINCHES
LMILLIMETERS
Table 2
Reply Code (AC20)Reply
ANOMINAL
BMINIMUM
CMAXIMUM
CLQL*GCOLLOQUIAL NAME
A COMMON USAGE NAME BY WHICH AN ITEM IS KNOWN.
Enter the reply in clear text.
(CLQLGWOVEN WIRE CLOTH*)