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Catalog item

BOLT,EXTERNALLY RELIEVED BODY

5306FSC

00NCB code

251-2181Item number

NIIN 00-251-2181

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DEMIL code: A

Identification

Item name code: 06675
PINC: 0006675
Criticality code: X
II: M
DEMIL code: A
DEMIL integrity code: 1
NIIN assigned: 13-JUN-73
Precious metals indicator: U
Hazardous material indicator: N

Part numbers

Part number: 4X181C1
CAGE: 98296
STANDARD MFG CO INC
CAGE status: H
RNCC: 3
RNVC: 9
Document availability code: 4
RNAAC: 9Z
RNFC: 3
RNSC: B

Characteristics

THREAD SERIES DESIGNATOR	UNF
HEAD HEIGHT	INCHES MINIMUM 0.155 AND INCHES MAXIMUM 0.160
WIDTH BETWEEN FLATS	INCHES MINIMUM 1.094 AND INCHES MAXIMUM 1.156
FIRST DIAMETER FROM HEAD	INCHES MINIMUM 0.620 AND INCHES MAXIMUM 0.625
SECOND DIAMETER FROM HEAD	INCHES MINIMUM 0.499 AND INCHES MAXIMUM 0.501
HEAD STYLE
MATERIAL	OVERALL STEEL
SURFACE TREATMENT	OVERALL CADMIUM
NOMINAL THREAD DIAMETER	INCHES 0.625
THREAD QUANTITY PER INCH	18
HARDNESS RATING	OVERALL ROCKWELL C MINIMUM 30.0 AND ROCKWELL C MAXIMUM 34.0
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	INCHES MINIMUM 0.313 AND INCHES MAXIMUM 0.385
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	INCHES MINIMUM 0.656 AND INCHES MAXIMUM 0.718
FASTENER LENGTH	INCHES MINIMUM 1.094 AND INCHES MAXIMUM 1.156
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	INCHES MINIMUM 0.219 AND INCHES MAXIMUM 0.281

MOE rules

MOE rule: ZG01
MOE CD: ZG
Date assigned: 01-APR-91
PICA: ZG
PICA LOA: 81
Auth collab: ZG

Freight

ACTY CD: ZG

Related items

Standardization

Item standardization code: 6
Orig stdzn dec: KZ
Dt stdzn dec: 07-FEB-1980
NIIN status code: 0

Cancelled and replaced NIINs

FSC: 5306
Cancelled NIIN: 5306-00-227-7157
NIIN status code: 5
Effective date: 02-JUL-2026
DEMIL code: A

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