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 5960-01-437-7422
NSN 5925-01-576-5407
NSN 7035-01-660-7059
NSN 6150-01-610-5293
NSN 6620-01-352-5640
NSN 6150-01-204-9384
NSN 6135-01-633-2066
NSN 6320-01-228-2380
NSN 7035-00-275-5604
NSN 6220-01-354-7598
NSN 5975-01-309-6463
NSN 7035-01-056-5350