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 6135-00-962-4111
NSN 6145-00-275-4046
NSN 5998-01-386-1292
NSN 6320-01-461-5866
NSN 5999-01-265-0349
NSN 5960-01-301-3315
NSN 6685-00-387-9654
NSN 5895-00-243-6649
NSN 5895-00-118-1895
NSN 5960-01-632-6576
NSN 7035-01-311-3325
NSN 5935-01-605-0634