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 6650-01-024-4437
NSN 5998-01-067-9359
NSN 5925-00-421-3012
NSN 6610-00-814-3083
NSN 6240-00-905-6050
NSN 2925-01-052-0636
NSN 6645-00-836-9013
NSN 5985-00-842-1418
NSN 6240-01-300-8528
NSN 5975-01-371-1609
NSN 6145-01-436-6241
NSN 5895-01-442-6518