>> Search results for: B3402IN NSN Search Results National Stock Number (NSN) Description 4820-01-418-8953, 4820014188953 VALVE,CHECK 4820-01-418-7048 , 4820014187048 DISK,VALVE 5330-01-416-5525, 5330014165525 GASKET 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