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 6645-01-574-6160
NSN 6145-01-294-1988
NSN 5950-01-086-4635
NSN 5965-00-879-7287
NSN 5855-00-832-9341
NSN 5905-01-241-7184
NSN 6105-01-425-0284
NSN 5925-01-483-1656
NSN 6620-01-250-7445
NSN 5925-01-163-0160
NSN 5950-01-449-3502
NSN 6685-01-050-8391