A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6145-01-149-2964
NSN 6130-00-411-9535
NSN 5905-01-234-0529
NSN 6645-01-650-1860
NSN 5920-00-973-1276
NSN 6610-01-497-8271
NSN 5935-01-265-8348
NSN 6645-01-193-9839
NSN 7035-01-555-6410
NSN 6320-00-977-3930
NSN 6320-01-056-1164
NSN 5985-00-827-2364