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 5855-01-217-4172
NSN 6650-00-197-7563
NSN 6130-01-463-5566
NSN 7035-01-424-7019
NSN 6145-00-635-9957
NSN 5910-00-515-3586
NSN 6135-00-808-5093
NSN 6685-01-544-3343
NSN 6105-01-424-7570
NSN 5975-00-236-0841
NSN 7035-00-541-8516
NSN 6610-00-364-7543