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 6110-00-173-5889
NSN 6320-00-004-9158
NSN 6645-01-447-3143
NSN 5935-00-782-6384
NSN 6135-01-458-3851
NSN 5925-01-306-4454
NSN 5905-01-503-8040
NSN 6220-01-442-3354
NSN 6620-00-581-8984
NSN 5855-01-154-3871
NSN 4140-01-258-4046
NSN 6650-00-677-2577