>> Search results for: B1620A0500PI NSN Search Results National Stock Number (NSN) Description 4820-01-441-1580, 4820014411580 SEAT,VALVE 5365-01-441-3173 , 5365014413173 PLUG,MACHINE THREAD 4820-01-441-9340, 4820014419340 DISK,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