National Stock Number (NSN) 5310-01-197-6526, or NIIN 011976526, (nut,sleeve) was assigned December 24, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 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 somewhat common among different platforms, belonging to 2 different weapons systems.
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) 29735. [AN INTERNALLY THREADED ITEM WITH A CYLINDRICAL AND/OR SQUARE, HEXAGONAL, OCTAGONAL, OR DODECAGONAL OUTER PERIPHERY (PARALLEL TO THE THREADED AXIS) A PORTION(S) OF WHICH MAY OR MAY NOT BE ENLARGED, FORMING A FLANGE(S) AND/OR SHOULDER(S). ITEMS NOT HAVING AN ENLARGED OUTER PORTION MAY BE THREADED, A PART OF THE FULL LENGTH, OR TAPPED FROM BOTH ENDS. ITEMS HAVING AN ENLARGED OUTER PORTION (FLANGE(S) OR SHOULDER(S)) MAY BE THREADED THE FULL LENGTH, THREADED A PART OF THE FULL LENGTH, OR TAPPED FROM BOTH ENDS. ITEMS TAPPED FROM BOTH ENDS SHALL HAVE EITHER RIGHT-HAND THREADS ON BOTH ENDS OR LEFT-HAND THREADS ON BOTH ENDS. FOR ITEMS CONFORMING TO ANY OF THE ABOVE AND HAVING A LENGTH OVERALL EXCEEDING TWO TIMES THE LARGEST OUTSIDE DIAMETER OR WIDTH ACROSS FLATS, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. FOR ITEMS WITH AN OUTSIDE CONTOUR THAT IS THE SAME THE FULL LENGTH, HAVING A CONTINUOUS THREAD THROUGH ITS ENTIRE LENGTH, AND THE LENGTH DOES NOT EXCEED TWO TIMES THE DIAMETER OR WIDTH ACROSS THE FLATS USE NUT (1), PLAIN (AS MODIFIED). EXCLUDES:NUT (1), PLAIN, CAP. SEE ALSO TURNBUCKLE BODY.]. 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 5310011976526 does not contain precious metals.
This NSN is associated to Schedule B 7318160000: nuts of iron or steel. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.
This information was last updated on Aug 01, 2025.