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 6130-00-050-5539
NSN 6240-00-299-9819
NSN 6685-00-186-9190
NSN 5915-00-430-7543
NSN 5985-00-953-1519
NSN 6610-00-141-7000
NSN 5910-01-048-9194
NSN 5925-01-352-0657
NSN 5910-00-681-2377
NSN 5895-00-928-7371
NSN 6320-00-149-7570
NSN 5945-01-131-7591