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 7035-00-803-3056
NSN 5965-01-168-8180
NSN 5835-00-554-0399
NSN 5999-00-081-9413
NSN 5855-00-944-0949
NSN 6135-01-344-2442
NSN 5990-01-433-3786
NSN 5915-01-464-8936
NSN 5915-01-343-0941
NSN 5985-00-684-5512
NSN 5925-01-159-7595
NSN 7035-01-186-0024