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 6105-01-586-0341
NSN 6220-00-475-0217
NSN 6135-01-340-9731
NSN 6610-00-935-7131
NSN 6645-00-171-9639
NSN 5999-00-206-0444
NSN 5950-01-529-6542
NSN 6220-01-603-5421
NSN 5905-01-100-3984
NSN 5835-01-310-8979
NSN 5835-01-531-0379
NSN 6150-00-114-2785