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 5975-01-357-7019
NSN 5935-00-156-3697
NSN 6650-01-353-2281
NSN 2925-01-471-3365
NSN 6685-01-413-6487
NSN 6135-00-203-9645
NSN 6105-01-307-8086
NSN 5960-01-169-1372
NSN 5915-01-324-9074
NSN 5996-01-177-2848
NSN 5925-01-311-0636
NSN 5895-01-079-7117