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 5930-01-172-5115
NSN 5945-01-594-2332
NSN 5998-01-268-5641
NSN 5930-00-737-0661
NSN 5920-01-458-0348
NSN 6320-01-346-5158
NSN 6620-01-412-5514
NSN 5965-01-338-4623
NSN 6685-00-720-3525
NSN 6220-01-226-5292
NSN 6240-01-476-1612
NSN 5930-01-622-8541