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 6130-01-515-2833
NSN 6130-01-497-6111
NSN 5999-01-017-1076
NSN 4140-01-341-3310
NSN 6105-00-466-9880
NSN 6150-01-148-7105
NSN 5965-01-408-1303
NSN 4140-01-056-4453
NSN 5965-00-583-4865
NSN 5960-01-349-2773
NSN 6645-00-720-3953
NSN 6135-01-189-5567