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 5950-01-241-7825
NSN 5985-00-916-8294
NSN 7035-01-364-8454
NSN 5835-00-119-5585
NSN 6620-00-849-0450
NSN 5895-00-573-5714
NSN 6645-00-492-9487
NSN 6240-00-865-3257
NSN 5945-01-170-4432
NSN 6130-01-052-8470
NSN 5910-00-738-9047
NSN 5998-00-358-5710