>> Search results for: 81398FBS NSN Search Results National Stock Number (NSN) Description 4820-01-420-1958, 4820014201958 VALVE,CHECK 4820-01-420-2149 , 4820014202149 BALL,CHECK 5330-01-420-2100, 5330014202100 GASKET 5306-01-419-9893 , 5306014199893 BOLT,MACHINE 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