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 6240-00-243-5796
NSN 5930-01-372-5389
NSN 6150-01-444-8297
NSN 6220-01-205-7688
NSN 5910-01-063-1006
NSN 5930-01-122-4046
NSN 6145-01-420-5120
NSN 6645-01-045-4088
NSN 5998-00-827-0417
NSN 5895-01-494-9992
NSN 6150-01-400-0692
NSN 6610-00-890-5167