>> Search results for: 5240S1 NSN Search Results National Stock Number (NSN) Description 5307-00-545-1868, 5307005451868 STUD,PLAIN 4820-01-654-7717 , 4820016547717 VALVE,VENT-CHECK 2040-01-667-7053, 2040016677053 FLAME ARRESTER,VENTILATION-EXHAU 4820-01-349-3820 , 4820013493820 VALVE,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