>> Search results for: 28493N NSN Search Results National Stock Number (NSN) Description 4820-01-273-1411, 4820012731411 DISK,VALVE 4820-01-273-3334 , 4820012733334 SEAT,VALVE 4820-01-273-3408, 4820012733408 GUIDE,VALVE STEM 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