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 5998-00-308-1048
NSN 5925-01-352-3349
NSN 6220-01-248-0158
NSN 5960-01-553-4557
NSN 7035-00-574-4223
NSN 5895-01-444-2202
NSN 6685-00-989-4674
NSN 2925-00-644-0028
NSN 6135-00-334-4500
NSN 5985-01-182-1119
NSN 5915-01-289-5687
NSN 5920-01-459-2140