Material per federal standard 66, carbon or aisi alloy, .27-.46c; heat treated to rockwell hardness c25-c31; open end thread to 0.875-14 unf-2b; thread lg.=1.250 in.
An item specifically designed to fit into or over the opening(s) of various items to provide mechanical protection and/or to prevent the entrance of foreign matter during painting, shipping, storage, or the like. It is not designed to retain fluids under pressure during equipment operation. For items designed to fit only into an opening, see plug (as modified) and stopper (as modified). For items designed to fit only over an opening, see boot (as modified); cap (as modified); cover (as modified); and hood (as modified).
Classification: Gaskets,washers & other seals
NSN 5895-01-458-3400
NSN 6320-01-642-2615
NSN 6220-01-574-2727
NSN 7035-01-323-0164
NSN 5996-00-797-2603
NSN 7035-01-325-0536
NSN 5990-01-024-9659
NSN 6220-00-798-6831
NSN 6105-00-975-1280
NSN 5905-01-424-5471
NSN 6105-00-011-3671
NSN 5960-01-487-6436