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 6150-01-453-2993
NSN 6130-01-384-1299
NSN 5985-00-012-5756
NSN 5920-00-850-2407
NSN 5915-00-938-9404
NSN 6150-01-490-7121
NSN 6685-01-271-8487
NSN 5920-01-247-9196
NSN 6645-01-514-7901
NSN 6650-00-320-8683
NSN 5915-01-246-3580
NSN 6620-01-023-9330