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 6645-00-074-4580
NSN 5985-00-826-8450
NSN 6145-00-617-4032
NSN 5905-00-809-4639
NSN 6105-01-441-1184
NSN 5925-01-178-7547
NSN 6145-00-827-3435
NSN 6320-00-456-0836
NSN 2925-00-315-8442
NSN 5965-01-446-1939
NSN 6320-01-506-9439
NSN 5930-01-101-9954