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 5930-01-628-6256
NSN 5945-01-190-8585
NSN 5945-01-179-6727
NSN 5895-01-367-2922
NSN 5915-01-417-3123
NSN 5950-01-152-2622
NSN 6685-00-760-8028
NSN 5985-00-655-1934
NSN 5855-01-061-6890
NSN 6685-00-317-4319
NSN 6645-01-297-5639
NSN 5935-00-860-5482