>> Search results for: STD1763 NSN Search Results National Stock Number (NSN) Description 5310-00-252-4564, 5310002524564 LOCKNUT 2040-21-909-1961 , 2040219091961 RULE,NONFOLDING 2040-21-909-1949, 2040219091949 FLAME ARRESTER,VENT 2040-21-909-1962 , 2040219091962 FLAME ARRESTER,VENT 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