A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6145-01-104-0154
NSN 5915-01-459-8046
NSN 6240-01-610-8705
NSN 5895-01-391-9753
NSN 6240-00-578-7894
NSN 5950-00-855-6709
NSN 5998-01-573-0969
NSN 6145-01-525-8090
NSN 5950-01-058-0877
NSN 6645-01-383-6514
NSN 6220-01-620-7559
NSN 5965-01-421-7273