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 5985-01-117-2298
NSN 2925-00-596-9775
NSN 5915-00-688-5206
NSN 6220-01-221-9429
NSN 5985-01-481-2803
NSN 6240-01-656-4920
NSN 5985-01-574-0756
NSN 6220-01-512-0144
NSN 5945-00-204-0041
NSN 6135-01-100-3593
NSN 5975-01-508-8276
NSN 5950-00-301-1236