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 7035-01-246-3086
NSN 6685-01-586-2250
NSN 5895-00-971-2288
NSN 6145-00-851-0898
NSN 5960-01-137-2329
NSN 5920-00-721-0721
NSN 6145-01-620-5837
NSN 5905-01-619-9335
NSN 5945-01-309-8695
NSN 6220-01-168-1484
NSN 7035-01-413-6697
NSN 6240-00-241-9703