1-1/4 in. Size
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 6685-01-255-6981
NSN 6685-01-511-0052
NSN 5998-01-281-1530
NSN 5998-01-345-7430
NSN 6610-00-855-9966
NSN 6150-01-451-0455
NSN 6110-01-173-4946
NSN 5930-00-647-2910
NSN 5855-01-601-8145
NSN 5835-00-537-7780
NSN 6145-01-418-7017
NSN 5835-01-321-7895