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 5998-00-959-8382
NSN 7035-01-620-2873
NSN 6320-01-513-9166
NSN 5945-01-543-7468
NSN 6110-01-277-4595
NSN 5835-01-103-7778
NSN 6220-01-092-8959
NSN 5960-01-539-1956
NSN 6610-01-227-7221
NSN 6645-00-607-5226
NSN 6220-01-385-3132
NSN 5910-01-061-3181