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 5965-01-045-0247
NSN 5855-00-797-8217
NSN 7035-00-703-3535
NSN 5920-01-099-8998
NSN 2925-00-620-7757
NSN 6220-01-252-9531
NSN 6135-01-422-1440
NSN 5965-01-353-3725
NSN 6220-00-904-0156
NSN 6650-01-519-0399
NSN 6240-01-467-3341
NSN 5990-00-583-3726