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 6145-01-112-0902
NSN 2925-00-284-1534
NSN 6105-00-279-3044
NSN 5855-00-560-0110
NSN 5996-01-477-1157
NSN 5985-01-580-0140
NSN 6610-01-564-4084
NSN 6220-01-180-9041
NSN 6320-01-384-3850
NSN 5925-01-304-8961
NSN 5855-01-565-1405
NSN 6320-00-261-9136