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 6110-01-029-3403
NSN 5835-00-864-4481
NSN 6145-01-503-4924
NSN 6110-01-438-9395
NSN 5990-00-296-4825
NSN 6105-01-452-2567
NSN 5945-01-370-4784
NSN 6320-01-334-9840
NSN 2925-00-169-3775
NSN 5965-01-450-9205
NSN 6145-00-135-0260
NSN 6145-00-918-7225