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 6135-00-080-9176
NSN 7035-00-870-0290
NSN 5965-00-908-1402
NSN 5915-01-381-9455
NSN 2925-00-263-2714
NSN 6145-01-539-2138
NSN 5895-00-926-0806
NSN 5905-00-933-9306
NSN 6145-01-386-3718
NSN 2925-00-228-8854
NSN 5855-01-440-1768
NSN 6620-01-633-8443