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 5895-00-057-2670
NSN 6685-01-181-2273
NSN 7035-00-337-8745
NSN 5990-00-967-6267
NSN 6685-00-426-6710
NSN 4140-01-067-9905
NSN 5855-01-495-6457
NSN 6320-01-631-7828
NSN 6135-01-408-0313
NSN 5945-00-810-2251
NSN 6610-01-164-2227
NSN 6620-01-076-8706