Valve size 4.000 in.
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.
Classification: Check valves of iron
NSN 4140-00-953-2004
NSN 6685-01-378-1310
NSN 5945-00-001-9721
NSN 6105-00-816-2420
NSN 5950-00-821-4295
NSN 5925-01-280-2312
NSN 2925-01-502-8863
NSN 2925-01-137-4062
NSN 6110-01-462-0770
NSN 5905-00-173-0662
NSN 6150-01-047-7716
NSN 5910-01-294-9434