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 5998-01-407-1268
NSN 5915-00-159-7349
NSN 5915-01-211-7777
NSN 6610-00-350-1091
NSN 5975-00-765-8738
NSN 5895-00-935-6168
NSN 5925-01-112-5405
NSN 6685-01-217-0284
NSN 5965-00-461-2594
NSN 6645-01-130-9393
NSN 5905-01-291-8011
NSN 6135-01-125-4867