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 6645-01-385-7033
NSN 6645-00-363-9775
NSN 5960-01-512-0233
NSN 5960-01-624-1170
NSN 2925-00-099-4030
NSN 5905-01-115-5036
NSN 5990-01-320-1412
NSN 5895-00-090-6565
NSN 7035-01-431-4560
NSN 5905-00-157-5708
NSN 6610-01-119-7873
NSN 6135-01-100-3593