>> Search results for: D983A NSN Search Results National Stock Number (NSN) Description 2920-00-428-7578, 2920004287578 Cancelled -> Replaced by 2920001435290 4820-01-198-0762 , 4820011980762 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