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 6130-00-277-7321
NSN 5925-01-646-8052
NSN 5998-00-243-5433
NSN 6145-01-411-9054
NSN 7035-01-555-8793
NSN 6610-00-287-6296
NSN 5835-00-475-9271
NSN 6610-01-263-0425
NSN 2925-01-394-5650
NSN 5920-01-235-4758
NSN 6150-01-131-4562
NSN 5935-01-350-8302