>> Search results for: SP148B NSN Search Results National Stock Number (NSN) Description 4820-00-127-2632, 4820001272632 SEAT,VALVE 5310-99-863-6122 , 5310998636122 WASHER,FLAT 4820-01-377-7469, 4820013777469 SEAT,VALVE 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