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 6685-01-135-4357
NSN 6620-01-047-1301
NSN 6610-01-263-0425
NSN 5965-01-213-7256
NSN 5950-01-167-8920
NSN 6240-01-478-2125
NSN 6110-01-444-2628
NSN 5910-01-314-3637
NSN 5975-01-653-3435
NSN 6130-00-396-1118
NSN 5905-01-265-1088
NSN 6320-01-606-2508