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 5905-00-085-4486
NSN 6645-01-257-1948
NSN 6145-01-101-0890
NSN 6130-01-143-3611
NSN 5925-01-429-7699
NSN 5910-00-961-1663
NSN 5965-00-139-1039
NSN 6110-00-124-8940
NSN 6610-01-304-3226
NSN 6610-00-176-5486
NSN 5905-00-844-7193
NSN 5950-01-056-1018