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 5960-01-254-3541
NSN 5996-01-501-2519
NSN 6110-01-068-3552
NSN 5910-01-327-2271
NSN 5915-00-798-9141
NSN 2925-01-391-9247
NSN 5998-00-807-4486
NSN 5965-01-200-6613
NSN 6685-01-272-9452
NSN 6620-00-494-5122
NSN 5975-01-032-5109
NSN 6685-00-419-6760