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 6220-01-595-9698
NSN 2925-01-602-8709
NSN 5855-01-006-1827
NSN 6685-00-960-7667
NSN 6130-00-452-9464
NSN 5905-00-999-4670
NSN 5985-00-266-2094
NSN 5945-01-326-7024
NSN 5855-01-172-4568
NSN 6135-01-280-2883
NSN 6320-00-853-1920
NSN 5945-00-089-8865