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 5835-00-025-9951
NSN 6145-01-023-0128
NSN 6610-00-216-6538
NSN 5999-01-525-6949
NSN 5985-01-053-1561
NSN 6610-01-168-7943
NSN 6645-01-420-7801
NSN 7035-00-981-7216
NSN 6685-00-001-6459
NSN 5960-00-222-6174
NSN 5935-01-116-3722
NSN 6150-01-518-7105