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 5920-00-584-4592
NSN 5895-01-144-7098
NSN 5910-01-208-2664
NSN 5950-00-155-4753
NSN 5990-01-364-1942
NSN 5996-01-026-2375
NSN 6645-01-641-8755
NSN 6150-01-535-2569
NSN 5990-01-577-2120
NSN 6130-01-381-1713
NSN 6130-01-519-9337
NSN 5915-01-569-1406