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 5855-01-528-0304
NSN 6135-00-767-0331
NSN 6110-00-223-2081
NSN 5950-01-485-9330
NSN 5835-00-373-2671
NSN 5835-01-430-4765
NSN 5985-01-584-5953
NSN 6685-01-569-7986
NSN 6135-00-209-6918
NSN 2925-01-459-8093
NSN 5950-01-515-0172
NSN 5960-00-351-4821