>> Search results for: 51220020 NSN Search Results National Stock Number (NSN) Description 4240-01-320-8949, 4240013208949 MASK,CHEMICAL-BIOLOGICAL 6110-01-220-5888 , 6110012205888 CONTACTOR,MAGNETIC 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