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 6110-01-552-3570
NSN 6685-01-569-7986
NSN 5855-00-433-2377
NSN 5935-00-425-3718
NSN 6645-00-915-1817
NSN 6685-01-379-7764
NSN 5895-00-128-6783
NSN 6610-00-885-7000
NSN 5975-00-768-8910
NSN 6150-01-094-8515
NSN 2925-00-419-5868
NSN 6145-01-401-3713