>> Search results for: B4021K NSN Search Results National Stock Number (NSN) Description 4730-01-094-7395, 4730010947395 NUT,TUBE COUPLING 5310-01-209-9871 , 5310012099871 NUT,PLAIN,KNURLED 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