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 6620-01-168-8244
NSN 6130-01-076-4219
NSN 6110-00-993-3930
NSN 6130-01-231-5387
NSN 6320-01-173-7950
NSN 2925-01-565-6410
NSN 5925-01-124-2441
NSN 6105-01-585-8381
NSN 5998-01-366-6312
NSN 5855-01-426-5589
NSN 5895-01-129-2131
NSN 6220-00-288-4350