NSN 5306-00-260-4639, 5306002604639
Cancelled -> Replaced by 5306006194863

Federal Supply Classification: FSC 5306 - Bolts
National Item Identification Number: NIIN 002604639
Codification Country: United States
Item Name Code: INC 15939
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 5306-00-260-4639

National Stock Number (NSN) 5306-00-260-4639, or NIIN 002604639, (bolt,square neck) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 15939. [A HEADED EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, WITH A SQUARE NECK DIRECTLY BENEATH THE HEAD.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5306002604639 contains an unknown precious metal.

This information was last updated on Jul 01, 2025.

Technical Characteristics

THREAD QUANTITY PER INCH: (CMLP) 10
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT: (SFTT) ZINC OVERALL
NONDEFINITIVE SPEC/STD DATA: (ZZZT) 1 TYPE AND A STYLE AND 1 CLASS
THREAD DIRECTION: (AAJF) RIGHT-HAND
HEAD HEIGHT: (AASU) 0.375 INCHES MINIMUM AND 0.406 INCHES MAXIMUM
HEAD DIAMETER: (AASL) 1.469 INCHES MINIMUM AND 1.594 INCHES MAXIMUM
NECK WIDTH: (CWXQ) 0.741 INCHES MINIMUM AND 0.768 INCHES MAXIMUM
MATERIAL: (MATT) STEEL OVERALL
MINIMUM TENSILE STRENGTH: (CQBC) 55000 POUNDS PER SQUARE INCH
HARDNESS RATING: (CQFM) 95.0 ROCKWELL B MAXIMUM OVERALL
FASTENER LENGTH: (AASB) 6.000 INCHES NOMINAL
THREAD CLASS: (AAJD) 2A
NECK LENGTH: (AGQB) 0.375 INCHES MINIMUM AND 0.406 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) FF-B-584 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD LENGTH: (AASA) 1.750 INCHES MINIMUM
HEAD STYLE: (AASK) BUTTON
NOMINAL THREAD DIAMETER: (AHYM) 0.750 INCHES
THREAD SERIES DESIGNATOR: (THSD) UNC