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 5998-01-134-4229
NSN 5960-01-295-8924
NSN 6685-01-137-8517
NSN 5950-01-201-3579
NSN 6130-00-132-3267
NSN 5930-01-534-7458
NSN 2925-00-546-3129
NSN 5895-01-030-1270
NSN 6685-00-254-7316
NSN 6645-01-231-4764
NSN 6135-00-240-3200
NSN 5990-00-054-4785