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 5925-01-440-9111
NSN 6650-01-041-8112
NSN 5925-00-361-8836
NSN 5985-01-426-2830
NSN 5960-01-564-5044
NSN 5985-00-222-9037
NSN 5835-01-462-5225
NSN 6145-01-275-7998
NSN 6610-01-411-8770
NSN 5855-01-325-9507
NSN 5910-01-168-9669
NSN 6220-01-157-9062