>> Search results for: 321689 NSN Search Results National Stock Number (NSN) Description 4810-01-237-4421, 4810012374421 SEAT,VALVE 5307-00-638-0116 , 5307006380116 STUD,STEPPED 5998-14-407-4348, 5998144074348 PLAQUE,CABLAGE IMPR 4810-01-237-4421 , 4810012374421 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