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 5945-01-173-1136
NSN 6685-01-426-8929
NSN 2925-01-327-3069
NSN 5975-01-008-1428
NSN 6650-00-172-7519
NSN 2925-01-072-7101
NSN 5925-01-401-5314
NSN 6110-01-653-6139
NSN 6145-01-629-9381
NSN 6610-00-105-1665
NSN 6135-00-461-3590
NSN 7035-01-179-5667