>> Search results for: MAS57 NSN Search Results National Stock Number (NSN) Description 5306-01-142-2898, 5306011422898 BOLT,SHOULDER 4820-66-073-2709 , 4820660732709 STEM,FLUID VALVE 4730-14-263-0843, 4730142630843 RACCORD UNION MAJOR 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