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 7035-01-571-6684
NSN 5975-00-138-9057
NSN 6145-00-010-1425
NSN 5910-01-170-5760
NSN 6320-01-166-3602
NSN 6240-01-218-3828
NSN 6130-00-115-5510
NSN 5905-00-823-4013
NSN 5905-00-269-2995
NSN 6150-01-202-8214
NSN 6610-00-837-3012
NSN 4140-01-085-7810