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 6135-00-777-5562
NSN 5930-01-168-8184
NSN 5965-01-158-4187
NSN 6610-01-398-2554
NSN 5925-01-586-0232
NSN 5855-01-656-6808
NSN 6685-01-273-5208
NSN 5950-01-476-8851
NSN 6610-00-466-3104
NSN 6150-00-227-2424
NSN 6220-01-222-0724
NSN 5945-01-306-7850