National Stock Number
5315-01-597-3281
National Stock Number (NSN) 5315-01-597-3281, or NIIN 015973281, (pin,cotter) was assigned June 7, 2011 in the Federal Logistics Information System (FLIS). NIIN 015973281 was cancelled on March 2, 2012, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5315002451422. 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 somewhat common among different platforms, belonging to 2 different weapons systems.
This NSN is assigned to Item Name Code (INC) 02381. [A HALF ROUND, CYLINDRICAL, OR FLAT PIECE OF METAL, BENT TO FORM A STRAIGHT OR CRIMPED TWO-PRONGED DEVICE WITH AN EYE AT ONE END, FOR INSERTING IN A HOLE DRILLED AT RIGHT ANGLE TO THE AXIS OF THE STUD, SHAFT, OR LIKE ITEM. ITS ENDS ARE SEPARABLE OR ONE END IS BENT TO HOLD IT IN PLACE.]. 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 5315015973281 does not contain precious metals.
This information was last updated on Aug 01, 2025.