>> Search results for: R1019400 NSN Search Results National Stock Number (NSN) Description 4820-01-420-3285, 4820014203285 SEAT,VALVE 4820-01-420-3779 , 4820014203779 HOLDER,PIN,CHECK VALVE 4820-01-420-3320, 4820014203320 VALVE,CHECK 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