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 5920-01-282-4859
NSN 5910-01-180-7148
NSN 4140-01-443-9164
NSN 5998-01-200-6592
NSN 5965-01-306-6527
NSN 6685-01-056-5283
NSN 6240-00-925-4662
NSN 5920-01-283-7042
NSN 5996-01-515-3205
NSN 6685-01-650-2586
NSN 2925-01-442-0878
NSN 6145-01-061-4946