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 5999-00-548-2060
NSN 5905-01-188-2478
NSN 5910-01-455-4224
NSN 5895-01-622-5650
NSN 6610-01-466-9985
NSN 5915-01-305-8622
NSN 5990-01-473-4314
NSN 6220-01-561-7023
NSN 6645-01-486-7029
NSN 5920-00-504-0564
NSN 5950-01-287-8425
NSN 6610-01-472-2757