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 5935-01-065-1237
NSN 5960-00-963-1285
NSN 6610-01-474-6333
NSN 6220-01-102-9027
NSN 6130-01-013-3508
NSN 5835-01-209-6410
NSN 5920-01-036-7105
NSN 6135-00-930-5372
NSN 5998-01-201-4497
NSN 5945-01-109-3783
NSN 6130-01-345-5183
NSN 6320-01-452-2394