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 6220-01-130-2701
NSN 5910-00-900-4436
NSN 6135-01-490-7704
NSN 6110-01-217-4238
NSN 7035-00-902-8995
NSN 5975-00-045-1715
NSN 5920-00-726-5376
NSN 5855-00-256-5562
NSN 5905-00-248-6133
NSN 5990-01-483-7313
NSN 6685-00-203-4485
NSN 4140-01-437-7760