>> Search results for: 1273A39 NSN Search Results National Stock Number (NSN) Description 4920-01-143-0317, 4920011430317 HEAD ASSEMBLY,PROTECTOSEAL 2590-00-717-3518 , 2590007173518 Cancelled -> Replaced by 2910009366930 4920-21-892-4974, 4920218924974 HEAD ASSEMBLY,FILL 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