>> Search results for: 12990422 NSN Search Results National Stock Number (NSN) Description 6610-01-478-7509, 6610014787509 TRAY ASSEMBLY 2815-01-574-7172 , 2815015747172 RING SET,PISTON 2815-01-574-7165, 2815015747165 RING SET,PISTON 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