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 5996-00-195-5228
NSN 5985-01-582-7265
NSN 6685-01-316-2646
NSN 5920-01-176-5426
NSN 5920-01-332-7992
NSN 5975-01-197-1923
NSN 6145-01-385-4650
NSN 5930-01-410-9255
NSN 5945-00-890-8235
NSN 5925-01-327-0943
NSN 6685-01-323-5272
NSN 5999-01-378-8483