>> Search results for: BT2920 NSN Search Results National Stock Number (NSN) Description 5365-99-611-8068, 5365996118068 RING,RETAINING 5310-99-621-4416 , 5310996214416 WASHER,FLAT 5365-99-717-1590, 5365997171590 RING,RETAINING 2840-21-805-4493 , 2840218054493 RING, VALVE SPRING, 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information