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 5990-01-411-5930
NSN 6110-01-602-1114
NSN 5915-00-111-1363
NSN 6130-00-188-7928
NSN 5965-01-546-3696
NSN 5925-01-139-5372
NSN 7035-01-467-8921
NSN 6130-00-185-6709
NSN 5985-01-595-7542
NSN 4140-01-390-0455
NSN 6685-01-513-6183
NSN 5975-01-509-1478