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 6620-01-618-9854
NSN 5835-01-557-9062
NSN 5915-01-034-7006
NSN 5915-01-220-0849
NSN 6320-01-021-6633
NSN 5855-00-757-5149
NSN 5930-00-596-4523
NSN 5965-00-910-3233
NSN 5920-00-246-5992
NSN 6145-00-719-7395
NSN 5996-01-499-1244
NSN 6110-01-570-3905