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 6685-01-139-3529
NSN 5925-01-280-8390
NSN 5975-00-188-6514
NSN 5855-01-040-3881
NSN 5975-00-754-5299
NSN 5945-01-491-7495
NSN 2925-01-633-4048
NSN 6150-01-430-7207
NSN 2925-01-043-9786
NSN 5910-00-707-1364
NSN 6610-00-186-9180
NSN 6685-00-925-2862