>> Search results for: 5220V2IN NSN Search Results National Stock Number (NSN) Description 2040-01-087-5600, 2040010875600 FLAME ARRESTER,VENTILATION-EXHAU 4820-01-181-5760 , 4820011815760 VALVE,VENT-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