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 6130-01-123-7586
NSN 5935-00-227-1110
NSN 5855-00-688-9954
NSN 6135-00-935-8769
NSN 5975-01-552-4469
NSN 5990-01-188-7309
NSN 6130-01-611-3561
NSN 6610-00-277-7206
NSN 5975-00-183-7693
NSN 5965-01-518-5735
NSN 5945-00-959-6309
NSN 5985-01-138-5234