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 5905-01-529-9086
NSN 6220-00-232-4436
NSN 6135-00-930-5372
NSN 6685-00-607-1884
NSN 6610-00-376-7689
NSN 6130-00-151-5001
NSN 6145-01-578-1561
NSN 7035-00-517-8232
NSN 5945-00-904-7373
NSN 5895-01-602-9390
NSN 7035-01-271-1643
NSN 6320-01-495-0512