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 6650-01-151-4217
NSN 5945-01-386-5718
NSN 5915-01-540-1183
NSN 6610-01-083-1446
NSN 7035-00-541-8516
NSN 6220-00-111-3188
NSN 5855-00-688-9954
NSN 6105-00-665-8581
NSN 6610-01-119-7873
NSN 5915-00-982-2859
NSN 6150-01-080-2726
NSN 5895-01-212-3824