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 5935-01-145-7328
NSN 5950-00-400-6074
NSN 6220-01-212-0891
NSN 5945-01-004-9646
NSN 5910-00-073-7715
NSN 5950-01-235-0724
NSN 5895-00-981-3252
NSN 5920-00-283-7178
NSN 5945-01-395-1535
NSN 5985-01-495-9662
NSN 5910-01-407-8099
NSN 5960-01-408-6290