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 6685-00-080-8593
NSN 5895-01-483-5920
NSN 6645-00-907-1165
NSN 6220-01-115-6735
NSN 5835-00-251-9138
NSN 7035-00-941-4949
NSN 5960-00-597-2680
NSN 6130-00-296-4116
NSN 6650-01-655-3478
NSN 5915-01-158-5602
NSN 5910-00-777-1482
NSN 6610-01-653-8152