NSN 5315-01-264-1550, 5315012641550
PIN,SHOULDER,HEADLESS

Federal Supply Classification: FSC 5315 - Nails, Machine Keys, and Pins
National Item Identification Number: NIIN 012641550
Codification Country: United States
Item Name Code: INC 16749
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 5315-01-264-1550

National Stock Number (NSN) 5315-01-264-1550, or NIIN 012641550, (pin,shoulder,headless) was assigned September 26, 1987 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 6 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 14 suppliers. Today, 13 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 12 suppliers are deemed design controlled or valid supply parts.

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

This NSN is unique to one weapons system.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 16749. [A CYLINDRICALLY-SHAPED HEADLESS ITEM, HAVING A SHANK AT ONE OR BOTH ENDS. IT IS USED FOR ALIGNING, FASTENING, OR TRANSFER OF TORQUE AND/OR THRUST BY FITTING INTO CORRESPONDING HOLES OF ANOTHER ITEM. IT MAY BE THREADED ON ONE END.]. 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 5315012641550 does not contain precious metals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

FIRST END STYLE: (AAGZ) SQUARE
FIRST END LOCATION: (CRDY) THREADED END
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH: (ABHP) 1.240 INCHES MINIMUM AND 1.320 INCHES MAXIMUM
MATERIAL: (MATT) STEEL COMP XM-13 OVERALL
NOMINAL THREAD SIZE: (CQJX) 0.250 INCHES
SECOND END STYLE: (AAHP) CHAMFERED
SECOND END TAPER LENGTH: (AMFM) 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
SECOND END TIP RADIUS: (CSGL) 0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM
SECOND END RELATIONSHIP WITH FIRST END: (CQBB) NOT IDENTICAL
SECOND SHANK DIAMETER: (CQTR) 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
SECOND SHANK LENGTH: (CWAS) 0.593 INCHES NOMINAL
SHANK DIAMETER: (AAZE) 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
SHANK LENGTH: (AATR) 0.522 INCHES MINIMUM AND 0.602 INCHES MAXIMUM
SHOULDER WIDTH ACROSS FLATS: (AAVJ) 0.438 INCHES NOMINAL
STYLE DESIGNATOR: (STYL) SHOULDER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT: (SFTT) PASSIVATE OVERALL
THREAD CLASS: (AAJD) 3A
THREAD DIRECTION: (AAJF) RIGHT-HAND
THREAD LENGTH: (AASA) 0.405 INCHES NOMINAL
THREAD SERIES DESIGNATOR: (THSD) UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD SERIES DESIGNATOR: (THSD) UNJF
SURFACE TREATMENT: (SFTT) UNABLE TO DECODE
MATERIAL: (MATT) UNABLE TO DECODE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) UNABLE TO DECODE
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) UNABLE TO DECODE