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 5998-01-200-0641
NSN 6240-00-275-1950
NSN 5965-00-052-9184
NSN 6240-01-100-2597
NSN 5996-01-207-0804
NSN 7035-01-088-6415
NSN 5950-01-435-6354
NSN 6145-01-498-0113
NSN 5925-01-290-6976
NSN 5985-01-317-1002
NSN 6685-00-374-0482
NSN 6220-00-119-8630