National Stock Number
2510-01-399-1021
National Stock Number (NSN) 2510-01-399-1021, or NIIN 013991021, (shock absorber,direct action) was assigned November 16, 1994 in the Federal Logistics Information System (FLIS). NIIN 013991021 was cancelled on July 2, 1997, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 2510013273312. 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 assigned to Item Name Code (INC) 18434. [A DAMPER, EITHER FRICTIONAL OR HYDRAULIC, DESIGNED TO DAMPEN THE SHOCK OF SUDDENLY APPLIED FORCE AND/OR TO CONTROL SPRING REBOUND AND OSCILLATION, USUALLY ATTACHED TO THE VEHICLE FRAME, BODY OR HULL AND CONNECTED TO AN AXLE, SPRING, SPRING SUPPORT WEB OR PAD OR BETWEEN SUSPENSION ARMS OF TRACK-LAYING VEHICLES. SEE ALSO MOUNT, RESILIENT AND SHOCK ABSORBER, LEVER ACTION.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2510013991021 does not contain precious metals.
This information was last updated on Aug 01, 2025.