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 5998-00-147-7058
NSN 7035-01-542-3276
NSN 6685-01-184-5209
NSN 5965-00-102-8521
NSN 6320-01-422-1212
NSN 6145-00-427-7201
NSN 5925-00-556-7923
NSN 5985-01-262-4269
NSN 6130-01-534-5679
NSN 5930-00-244-3392
NSN 5835-01-509-9717
NSN 6135-00-603-4859