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 6645-01-277-9337
NSN 6110-01-594-6756
NSN 5950-00-846-5414
NSN 6130-00-107-2093
NSN 6685-01-115-1080
NSN 6150-01-142-2601
NSN 6610-01-224-7247
NSN 4140-01-136-2204
NSN 5975-00-218-0414
NSN 5935-00-535-8074
NSN 6220-01-480-9536
NSN 6610-01-083-1446