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 5920-00-322-8618
NSN 5965-00-228-8336
NSN 5855-00-167-7893
NSN 6110-00-148-8536
NSN 6645-00-215-0102
NSN 5925-00-718-7530
NSN 5930-01-381-0431
NSN 5950-00-266-9058
NSN 5950-01-100-5701
NSN 5915-01-184-0397
NSN 5895-00-159-1237
NSN 6610-01-406-4985