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 5915-00-050-8522
NSN 5999-01-025-1187
NSN 6320-01-372-8671
NSN 6105-01-633-3031
NSN 5925-01-411-5222
NSN 6130-01-544-3472
NSN 5950-01-231-8892
NSN 6645-00-951-0687
NSN 5930-00-205-0136
NSN 5998-00-502-9065
NSN 6110-01-158-7037
NSN 6130-01-364-4881