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 6150-01-003-1054
NSN 5895-01-168-7595
NSN 6645-00-558-0028
NSN 5905-01-475-1871
NSN 6685-01-595-0277
NSN 2925-00-233-5644
NSN 6220-01-508-3408
NSN 5985-00-216-8064
NSN 5996-00-984-2145
NSN 5965-00-983-1815
NSN 5895-01-412-4729
NSN 5960-00-384-2601