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 5965-01-170-5705
NSN 7035-01-399-5354
NSN 5985-01-556-3220
NSN 4140-01-338-5984
NSN 5920-00-006-1919
NSN 6145-01-270-1856
NSN 6320-01-264-7611
NSN 5930-01-534-9960
NSN 5960-01-159-4343
NSN 6105-00-424-6283
NSN 7035-01-230-0250
NSN 5930-01-624-1710