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 6240-01-383-1576
NSN 5925-00-027-8220
NSN 5895-01-297-2706
NSN 5895-01-367-2922
NSN 6320-01-006-6138
NSN 6645-01-430-4125
NSN 5915-00-959-5454
NSN 5990-00-067-6791
NSN 6320-01-449-1014
NSN 6145-01-153-1413
NSN 5855-01-279-9938
NSN 5910-00-975-2060