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 5935-01-609-8821
NSN 6240-01-239-1488
NSN 5950-00-244-5941
NSN 5965-00-007-7863
NSN 6150-01-591-3321
NSN 5930-01-600-9595
NSN 5975-01-325-7635
NSN 5999-01-172-4573
NSN 2925-01-283-6740
NSN 6110-00-889-1263
NSN 2925-01-243-0328
NSN 6110-01-053-6304