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 6320-01-330-4634
NSN 6135-00-851-8575
NSN 6645-01-487-4341
NSN 5905-01-376-4141
NSN 5915-01-265-0326
NSN 6150-01-535-4645
NSN 6610-01-032-5834
NSN 5950-00-886-1602
NSN 5915-01-542-8722
NSN 6650-01-614-3302
NSN 5915-01-518-5508
NSN 5945-00-539-2737