>> Search results for: B21216 NSN Search Results National Stock Number (NSN) Description 9520-01-686-5059, 9520016865059 BEAM,STRUCTURAL 3020-01-202-8598 , 3020012028598 GEAR,HELICAL 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