National Stock Number
2540-01-697-8399
National Stock Number (NSN) 2540-01-697-8399, or NIIN 016978399, (cylinder assembly,reaction) was assigned October 14, 2021 in the Federal Logistics Information System (FLIS). 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 one supplier. 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) 31634. [A SPRING LOADED AND/OR GAS FILLED MECHANISM DESIGNED TO EXERT AN OPPOSITE FORCE WHICH WILL BE USED TO ABSORB, DAMPEN, AND/OR NEUTRALIZE APPLIED FORCE. EXCLUDES SHOCK ABSORBER, DIRECT ACTION; AND SHOCK ABSORBER, LEVER ACTION.]. 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 2540016978399 does not contain precious metals.
This information was last updated on Jul 01, 2025.