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 6145-00-528-6467
NSN 6135-01-166-7355
NSN 6620-01-375-0211
NSN 5990-01-443-2931
NSN 6105-01-205-7190
NSN 6620-01-054-9346
NSN 6645-01-093-1426
NSN 7035-00-205-1932
NSN 5895-01-278-9379
NSN 7035-01-034-6183
NSN 5835-00-233-6327
NSN 5990-00-105-7831