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 6645-01-298-4662
NSN 6685-01-160-8960
NSN 6650-00-479-9329
NSN 5945-01-343-8882
NSN 5960-00-949-1553
NSN 6145-00-006-8438
NSN 6645-00-472-4048
NSN 5950-01-098-1652
NSN 5945-01-115-1010
NSN 6650-01-139-5238
NSN 5910-00-905-6174
NSN 6645-01-605-1485