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 6135-01-159-3032
NSN 5975-01-554-1658
NSN 6685-01-107-4571
NSN 6320-01-544-6447
NSN 5950-01-220-1996
NSN 5965-00-458-7321
NSN 5910-01-116-7387
NSN 6130-01-223-5213
NSN 5945-00-500-5741
NSN 5999-01-204-1750
NSN 5965-01-584-7601
NSN 5920-01-123-9854