NSN 5310-00-016-7181, 5310000167181
NUT,SELF-LOCKING,HEXAGON

Federal Supply Classification: FSC 5310 - Nuts and Washers
National Item Identification Number: NIIN 000167181
Codification Country: United States
Item Name Code: INC 05277
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 5310-00-016-7181

National Stock Number (NSN) 5310-00-016-7181, or NIIN 000167181, (nut,self-locking,hexagon) was assigned April 25, 1967 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for this NSN.

This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 23 contracts issued for this part number, with 26 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 8 different suppliers. The last contract numbers awarded were: SPEHA623F1722, SPEHA622F0095, SPEHA621F0593, SPEHA621F0133, SPEHA620F0805. The total value of the awarded contracts has been US$ 60,420.47.

This NSN is very common among different weapons systems, belonging to 44 different platforms.

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 Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 05277. [A NUT HAVING A FLAT BOTTOM AND 6 SIDES. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER. EXCLUDES:NUT (1), SELF-LOCKING, CAP.]. 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 5310000167181 contains an unknown precious metal.

This information was last updated on May 01, 2024.

Technical Characteristics

BEARING SURFACE FINISH: (CSXL) 125.0 MICROINCHES
BEARING SURFACE TYPE: (CRTM) CHAMFERED OR WASHER FACED
COUNTERSINK ANGLE: (CRSQ) 88.0 DEGREES MINIMUM NUT
NOMINAL THREAD SIZE: (CQJX) 0.312 INCHES
NUT HEIGHT: (ADEA) 0.266 INCHES MAXIMUM
NUT STYLE: (ACTA) HEXAGON
LOCKING FEATURE: (AAUM) PREVAILING TORQUE WITH NONMETALLIC INSERT
LUBRICATION: (ABAJ) SOLUBLE LUBRICANT
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) QQ-A-200/2,T6 FED SPEC 1ST MATERIAL RESPONSE NUT OR QQ-A-225/4,T4 FED SPEC 2ND MATERIAL RESPONSE NUT OR QQ-A-225/6,T6 FED SPEC 3RD MATERIAL RESPONSE NUT OR QQ-A-200/11,T6 FED SPEC 4TH MATERIAL RESPONSE NUT
MATERIAL: (MATT) ALUMINUM ALLOY 2014 NUT OR ALUMINUM ALLOY 2017 NUT OR ALUMINUM ALLOY 2024 NUT OR ALUMINUM ALLOY 7075 NUT
THREAD CLASS: (AAJD) 3B
THREAD DIRECTION: (AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH: (CMLP) 24
THREAD SERIES: (BZRR) UNJF
WIDTH ACROSS FLATS: (ASDB) 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OVERALL EXCEPT INSERT OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL EXCEPT INSERT
SURFACE TREATMENT: (SFTT) ANODIZE OVERALL EXCEPT INSERT OR CHROMATE OVERALL EXCEPT INSERT
TEMP RATING: (AZKQ) 250.0 DEG FAHRENHEIT MAXIMUM