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 6110-01-269-9692
NSN 5965-00-705-1690
NSN 6320-01-407-8663
NSN 5985-01-094-4525
NSN 5996-00-104-5607
NSN 5950-00-145-5661
NSN 5835-00-419-6576
NSN 5945-01-368-4876
NSN 5930-01-201-9193
NSN 5965-01-296-8991
NSN 6650-00-826-7396
NSN 5965-01-533-7687