National Stock Number
5340-00-521-5371
National Stock Number (NSN) 5340-00-521-5371, or NIIN 005215371, (fastener,cylinder,spring loaded) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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 assigned to Item Name Code (INC) 20242. [A POSITIVE LOCKING DEVICE CONSISTING OF A SPRING LOADED CYLINDER AND PLUNGER. ONE END HAS A HANDLE WITH AN EYE, HOOK, BAR, OR THE LIKE, FOR FASTENING TO THE ITEM TO BE RETAINED. THE OPPOSITE END USUALLY HAS A PLATE, BRACKET, STUD, HOOK, OR THE LIKE, FOR FASTENING TO A STRUCTURE. IT MAY BE FURNISHED WITH A CATCH.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5340005215371 contains an unknown precious metal.
This NSN is associated to Schedule B 8301600000: parts of locks, base metal. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332510: hardware manufacturing.
This information was last updated on Aug 01, 2025.