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 5999-00-179-6935
NSN 5950-01-032-4513
NSN 5965-00-691-9130
NSN 5975-01-206-1521
NSN 6610-01-409-1781
NSN 6220-01-497-0272
NSN 5925-01-372-0863
NSN 6150-01-468-5603
NSN 5920-01-318-4111
NSN 5960-00-333-8174
NSN 6145-01-345-4529
NSN 5925-01-314-9522