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 6620-00-296-6762
NSN 5996-01-633-7979
NSN 6650-01-014-7671
NSN 2925-01-076-5219
NSN 5975-00-186-8884
NSN 6650-01-528-8230
NSN 5895-01-099-8220
NSN 6110-00-383-5367
NSN 6240-01-313-2229
NSN 6135-00-874-6566
NSN 6645-01-582-2663
NSN 6650-01-633-9147