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 5999-01-563-8825
NSN 5945-00-296-8464
NSN 5950-01-054-6161
NSN 5920-01-127-5985
NSN 5985-01-642-6373
NSN 5895-01-278-3756
NSN 6150-01-548-1413
NSN 5998-00-245-3984
NSN 6130-00-887-1300
NSN 5915-00-276-8332
NSN 6650-01-497-5782
NSN 5996-00-293-4687