>> Search results for: 740309FR21 NSN Search Results National Stock Number (NSN) Description 5970-01-050-4202, 5970010504202 INSULATOR,WASHER 5970-01-149-2301 , 5970011492301 INSULATOR,DISK 5970-01-158-6513, 5970011586513 Cancelled -> Replaced by 5970011722517 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