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 5855-01-328-7434
NSN 5905-01-630-3140
NSN 4140-01-608-3837
NSN 5965-00-646-4678
NSN 6645-00-155-2398
NSN 5950-01-445-3535
NSN 5905-00-111-0499
NSN 2925-00-835-4315
NSN 5920-00-539-7847
NSN 6145-00-390-0755
NSN 5920-00-350-9474
NSN 6145-00-663-6133