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 6105-01-004-1808
NSN 6110-00-916-8402
NSN 6610-01-241-9120
NSN 6620-01-334-5815
NSN 4140-00-983-4083
NSN 5930-01-076-4233
NSN 7035-01-265-2301
NSN 6220-01-360-5525
NSN 6150-01-524-7577
NSN 5996-01-580-0582
NSN 5910-00-754-0444
NSN 5835-01-122-9657