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 5965-00-859-8135
NSN 5895-01-634-0630
NSN 6650-01-581-6243
NSN 6320-01-316-2190
NSN 6105-00-219-2925
NSN 5935-01-441-8753
NSN 5930-01-465-8451
NSN 5950-00-148-9655
NSN 6650-01-010-4204
NSN 5985-00-151-4538
NSN 5996-01-528-6429
NSN 5999-01-158-9129