>> Search results for: B51234 NSN Search Results National Stock Number (NSN) Description 3020-01-199-1891, 3020011991891 CHAIN,SILENT 2840-99-623-8390 , 2840996238390 HOUSING-SEAL 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