>> Search results for: 2S6498 NSN Search Results National Stock Number (NSN) Description 5331-00-557-8434, 5331005578434 O-RING 4820-01-454-5092 , 4820014545092 VALVE,CHECK 4820-01-542-7596, 4820015427596 Cancelled -> Replaced by 4820014545092 4820-01-454-5092 , 4820014545092 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