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 5915-00-927-5555
NSN 6610-01-562-0846
NSN 6105-01-056-5258
NSN 5920-00-466-3950
NSN 5910-01-478-2686
NSN 5935-01-188-7546
NSN 5920-01-188-0048
NSN 6110-01-314-0591
NSN 5895-01-059-2403
NSN 6220-00-406-5045
NSN 6685-01-460-8196
NSN 6105-01-392-1539