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 5950-01-102-0985
NSN 5965-01-152-7606
NSN 6645-01-633-1852
NSN 5975-01-192-7305
NSN 6135-01-142-2417
NSN 5910-01-517-1237
NSN 2925-00-878-1136
NSN 4140-00-838-1252
NSN 5855-01-241-1054
NSN 5996-01-428-9436
NSN 5985-01-503-6432
NSN 6645-01-343-6077