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 6645-01-359-7875
NSN 5855-01-105-7793
NSN 5945-00-658-3468
NSN 5895-01-604-9702
NSN 6610-01-168-7943
NSN 5855-00-014-5008
NSN 5915-00-633-1217
NSN 5996-01-381-1316
NSN 5975-01-045-4588
NSN 6220-01-541-6283
NSN 6650-01-357-2543
NSN 6105-01-506-1281