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 6105-01-115-2270
NSN 5960-00-847-4743
NSN 6685-00-437-8347
NSN 5999-01-023-1633
NSN 6220-01-078-8207
NSN 5996-01-600-0348
NSN 6650-01-275-5469
NSN 5855-01-020-7982
NSN 5945-01-074-2248
NSN 7035-01-218-6960
NSN 6130-00-780-3043
NSN 5985-00-529-0093