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 6220-01-597-9882
NSN 6150-01-562-2231
NSN 5996-01-117-0338
NSN 7035-01-565-5515
NSN 2925-01-290-8208
NSN 5996-01-101-4673
NSN 5990-01-034-4532
NSN 6610-01-303-9516
NSN 5999-01-442-5446
NSN 5975-01-407-1333
NSN 5915-00-340-1135
NSN 5925-00-229-1412