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 6130-00-083-8902
NSN 5855-01-213-9076
NSN 5960-00-702-0110
NSN 4140-01-554-0886
NSN 6150-00-233-6356
NSN 6240-01-480-4478
NSN 6130-01-180-2187
NSN 5895-00-474-3975
NSN 5996-01-275-6693
NSN 6645-00-134-1531
NSN 6610-01-519-3080
NSN 5910-01-086-3306