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 5998-01-476-9623
NSN 5855-01-584-1051
NSN 5855-01-584-1365
NSN 6320-01-266-1612
NSN 5915-00-799-2975
NSN 6130-01-560-6296
NSN 5960-01-622-0393
NSN 5960-01-148-2297
NSN 6610-00-931-3656
NSN 5965-00-671-4119
NSN 5905-00-621-5134
NSN 5920-01-097-9927