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 5920-01-022-2384
NSN 5925-01-563-2979
NSN 7035-01-519-6779
NSN 5985-00-947-1284
NSN 5920-01-103-7683
NSN 5999-00-007-4423
NSN 5835-01-027-1828
NSN 6240-01-134-4944
NSN 6220-01-069-3685
NSN 5905-01-362-2427
NSN 5835-00-518-2740
NSN 6685-00-839-1106