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 6220-00-089-0474
NSN 5990-01-262-4068
NSN 6620-01-125-3932
NSN 5925-01-241-1855
NSN 6105-00-681-6261
NSN 6645-01-452-3354
NSN 5998-01-367-9858
NSN 4140-01-651-0459
NSN 5996-01-659-0882
NSN 5910-00-461-5369
NSN 6645-01-512-2260
NSN 6685-01-214-0359