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 5998-01-202-4924
NSN 6650-01-602-7567
NSN 2925-01-139-5144
NSN 6130-01-041-9509
NSN 6650-01-537-6906
NSN 6685-01-348-1170
NSN 6130-01-471-0490
NSN 5975-01-425-8478
NSN 6135-00-375-6861
NSN 6685-01-421-4026
NSN 5950-01-303-0242
NSN 5915-00-896-6918