An item consisting of a rupturable disk and the holder which encloses it in position. It is designed to rupture at a predetermined pressure. See also DISK, RUPTURABLE and HEAD, SAFETY, PRESSURE RELIEF.

FSC Information

4820	Valves, Nonpowered

Colloquial Information

J7475

BURST DISK ASSEMBLY

Change List

NOUN, WITH OR WITHOUT MODIFIERS, BY WHICH AN ITEM OF SUPPLY IS KNOWN.

Enter the item name code.

CYBJDDISK MATERIAL

THE CHEMICAL COMPOUND OR MECHANICAL MIXTURE PROPERTIES OF WHICH THE ITEM IS FABRICATED.

Enter the applicable reply code from the table below

(CYBJDCUB000*;CYBJDNLB000$DALB000*;CYBJDNLB000$$DALB000*)

Table 1
	Reply Code (MA01)	Reply
	ALA000	ALUMINUM
	ALB000	ALUMINUM ALLOY
	AL6061	ALUMINUM ALLOY 6061
	CUA000	COPPER
	CUB000	COPPER ALLOY
	CU0104	COPPER ALLOY 511
	GFA000	GRAPHITE
	NLA000	NICKEL
	NLB000	NICKEL ALLOY
	PCA000	PLASTIC
	PCP000	PLASTIC POLYAMIDE
	PCX000	PLASTIC POLYETHYLENE
	PCAF00	PLASTIC POLYTETRAFLUOROETHYLENE
	RCE000	RUBBER
	AGA000	SILVER
	STA000	STEEL
	ST0304	STEEL COMP 304
	ST0316	STEEL COMP 316
	STB000	STEEL CORROSION RESISTING

CYNEDHEAD MATERIAL

THE CHEMICAL COMPOUND OR MECHANICAL MIXTURE PROPERTIES OF WHICH THE HEAD IS FABRICATED.

Enter the applicable reply code from the table below

(CYNEDGFA000*;CYNEDRCE000$DAL6061*;CYNEDRCE000$$DAL6061*)

Table 1
	Reply Code (MA01)	Reply
	ALA000	ALUMINUM
	ALB000	ALUMINUM ALLOY
	AL6061	ALUMINUM ALLOY 6061
	CUA000	COPPER
	CUB000	COPPER ALLOY
	CU0104	COPPER ALLOY 511
	GFA000	GRAPHITE
	NLA000	NICKEL
	NLB000	NICKEL ALLOY
	PCA000	PLASTIC
	PCP000	PLASTIC POLYAMIDE
	PCX000	PLASTIC POLYETHYLENE
	PCAF00	PLASTIC POLYTETRAFLUOROETHYLENE
	RCE000	RUBBER
	AGA000	SILVER
	STA000	STEEL
	ST0304	STEEL COMP 304
	ST0316	STEEL COMP 316
	STB000	STEEL CORROSION RESISTING

INDICATES THE TYPE OF DISK.

Enter the applicable reply code from the table below

(BPLMDCPL*;BPLMDBKY$$DAGJ*)

Table 1
	Reply Code (AK95)	Reply
	CPJ	COMPOSITE
	CPK	REVERSE BUCKLING
	CPL	SCORED
	BKY	SLOTTED
	AGJ	SOLID

INDICATES THE TYPE OF HEAD PROVIDED.

Enter the applicable reply code from the table below

Table 1
	Reply Code (AE98)	Reply
	AJF	BOLTED
	AJG	INSERT
	AJH	SCREW
	AJJ	UNION

BKJW*JHEAD SIZE

DESIGNATES THE SIZE OF THE HEAD.

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.

Table 1
	Reply Code (AA05)	Reply
	A	INCHES
	L	MILLIMETERS

CSWKJBURST PRESSURE

THE MINIMUM INTERNAL PRESSURE AT WHICH THE ITEM CAN BE EXPECTED TO RUPTURE.

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.

(CSWKJFABD2.0*;CSWKJFABD2.0$$JFABD2.1*)

Table 1
	Reply Code (AL15)	Reply
	EK	PRESSURE
	FA	VACUUM

Table 2
	Reply Code (AG20)	Reply
	AV	KILOGRAMS PER SQUARE CENTIMETER
	DK	MEGAPASCALS
	BC	POUNDS PER SQUARE INCH ABSOLUTE
	BD	POUNDS PER SQUARE INCH GAGE

CYNP*JBURST TEMPERATURE

A RATING WHICH EXPRESSES THE DEGREE OF HEAT OR COLD AT WHICH THE ITEM IS RATED.

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.

Table 1
	Reply Code (AB36)	Reply
	C	CELSIUS
	F	FAHRENHEIT

TMQY*JFURNISHED ITEMS AND QUANTITY

THE NAME AND NUMBER OF THOSE PARTS FURNISHED WITH THE ITEM OF SUPPLY THAT HAVE NOT BEEN SPECIFIED ELSEWHERE.

Enter the applicable Reply Code from Table 1 below followed by a numeric reply with a minimum of one digit.

(TMQYJAFF2*;TMQYJAFF2$$JAFF3*)

Table 1
	Reply Code (AB28)	Reply
	BVS	BAFFLE PLATE
	BCC	EYEBOLT
	ACN	GASKET
	BCL	IDENTIFICATION TAG
	ABW	NUT
	APW	PROTECTIVE CAP
	AFF	RETAINING RING
	AJW	WASHER

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

(CBBLDENC*;CBBLDEMZ$$DENG*)

Table 1
	Reply Code (AN47)	Reply
	ENC	30 DEGREES ANGULAR SEAT
	EMX	ANODIZED CADMIUM PLATED
	EMY	CHROME PLATED
	EMZ	FLAT SEAT
	ENA	KNIFE BLADE IN OUTLET HOLDER
	ENB	NICKEL PLATED
	END	NONFRAGMENTING
	DPS	PLASTIC COATED
	ENE	POLYTETRAFLUOROETHYLENE CONTROL
	ENF	VACUUM SUPPORT
	ENG	VINYL COATED

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*)

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
	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
	NS	INSERT
	TM	ITEM
	KD	KIND
	KT	KIT
	LG	LENGTH
	LT	LIMIT
	MK	MARK
	ML	MATERIAL
	MH	MESH
	ME	METHOD
	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.

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*)