>> Search results for: ET1939 NSN Search Results National Stock Number (NSN) Description 4820-01-217-3291, 4820012173291 VALVE,CHECK 4820-99-764-6378 , 4820997646378 VALVE,CHECK 1 Related Inventory M168786-BEE-39WM878/06-24ET19-Condition NE RequestAdd to RFQ 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