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 6240-00-079-0112
NSN 5855-00-885-8452
NSN 7035-01-291-6468
NSN 7035-01-605-5166
NSN 5999-00-875-5148
NSN 5985-00-156-0970
NSN 6150-01-212-9010
NSN 6650-00-382-6080
NSN 5895-00-919-9939
NSN 6610-00-088-4404
NSN 5905-00-912-0376
NSN 5960-01-025-2526