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 5910-00-708-5195
NSN 5915-00-304-8195
NSN 6240-01-157-9128
NSN 6685-00-284-1070
NSN 4140-01-448-9725
NSN 5975-01-227-2690
NSN 5835-00-647-2104
NSN 2925-00-564-5967
NSN 6240-01-007-7987
NSN 5855-00-014-5008
NSN 5855-00-237-4088
NSN 5985-01-155-0886