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 5935-01-429-7182
NSN 5855-01-037-7342
NSN 5920-01-551-1295
NSN 5920-01-634-0250
NSN 5985-00-968-6381
NSN 6645-01-538-5041
NSN 6685-01-475-4188
NSN 5855-00-494-9581
NSN 7035-01-391-9858
NSN 5895-01-090-0567
NSN 2925-00-311-0825
NSN 7035-01-487-6481