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 5965-00-922-6243
NSN 6220-00-564-5120
NSN 6145-00-242-0569
NSN 6650-01-570-4795
NSN 6685-00-190-5955
NSN 6105-01-570-0351
NSN 5915-01-260-8652
NSN 5975-00-817-4476
NSN 6105-01-100-3129
NSN 5985-00-349-3953
NSN 6610-00-913-7069
NSN 5975-00-143-4658