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 6650-00-515-5217
NSN 6105-00-192-0151
NSN 6150-00-299-6678
NSN 7035-01-617-0072
NSN 5960-01-425-1454
NSN 6320-01-519-8767
NSN 5855-01-555-3354
NSN 6240-01-362-4166
NSN 6650-00-869-5760
NSN 6685-01-425-4599
NSN 6130-00-988-3257
NSN 6320-01-484-7734