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 5925-01-170-0445
NSN 6645-01-415-2296
NSN 5960-00-061-1171
NSN 5930-00-270-4442
NSN 7035-00-349-8571
NSN 5950-01-014-7937
NSN 5965-00-726-3168
NSN 5996-00-540-6570
NSN 5999-00-715-9188
NSN 6650-01-366-4663
NSN 6320-00-593-0379
NSN 5835-00-936-8753