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 6145-01-519-4701
NSN 5975-01-209-5479
NSN 6620-00-542-1579
NSN 2925-01-324-6423
NSN 5999-00-476-5639
NSN 7035-00-549-2722
NSN 6620-01-179-9737
NSN 6685-01-418-3015
NSN 5985-01-500-1776
NSN 6145-00-138-4658
NSN 6105-01-188-7292
NSN 5930-00-982-8675