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 6145-00-987-3401
NSN 6130-01-546-2608
NSN 5925-01-494-7444
NSN 6135-00-754-8191
NSN 5930-00-373-3870
NSN 6110-01-651-2629
NSN 5945-01-049-2016
NSN 5985-01-592-2249
NSN 5910-01-004-6419
NSN 6685-01-014-5336
NSN 5975-00-079-0022
NSN 7035-01-219-9476