National Stock Number
5315-01-557-4891
National Stock Number (NSN) 5315-01-557-4891, or NIIN 015574891, (pin,lock,detent) was assigned October 24, 2007 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 31471. [AN UNTHREADED DEVICE FORMED FROM NON-RESILIENT ROUND METALLIC STOCK INTO A SHAPE RESEMBLING THE LETTER "U" OF WHICH AT LEAST ONE OF THE ARMS HAS A DETENT FOR RETAINING THAT ARM IN A FIXED POSITION TO ANOTHER ITEM. EXCLUDES:PIN, LOCK AND PIN, QUICK RELEASE.]. 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 5315015574891 does not contain precious metals.
This information was last updated on Aug 01, 2025.