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 6610-01-539-8213
NSN 5905-01-246-6090
NSN 6110-00-879-0810
NSN 6685-01-421-9939
NSN 6240-01-521-9781
NSN 6645-00-927-8207
NSN 5930-01-204-8792
NSN 6650-00-144-4555
NSN 7035-01-364-0286
NSN 6145-01-546-8837
NSN 5990-01-147-5225
NSN 5930-00-872-6611