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 6650-00-671-5106
NSN 6645-01-394-1923
NSN 4140-01-051-4428
NSN 6145-01-622-7811
NSN 6110-01-366-6236
NSN 5935-00-318-2805
NSN 5998-01-399-1261
NSN 6610-01-010-3159
NSN 6610-01-555-8791
NSN 7035-01-498-2510
NSN 6150-00-823-5590
NSN 5905-00-130-6729