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 5910-00-542-2548
NSN 6620-00-165-1749
NSN 6610-01-570-6070
NSN 5835-01-302-2223
NSN 5960-01-143-1202
NSN 5996-01-214-6575
NSN 7035-00-215-3272
NSN 6130-00-020-1881
NSN 6685-01-107-9643
NSN 6620-00-010-8190
NSN 5950-01-414-4577
NSN 2925-00-127-7828