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 6645-00-394-8924
NSN 5895-01-260-5581
NSN 6620-00-176-5722
NSN 5996-01-146-4202
NSN 6685-00-203-2389
NSN 5985-00-877-7301
NSN 5950-01-266-4608
NSN 5905-01-498-9477
NSN 5996-01-599-9867
NSN 6240-01-320-1308
NSN 4140-01-645-2356
NSN 6220-00-240-0142