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 6130-01-514-8985
NSN 6650-01-641-2360
NSN 2925-01-394-9658
NSN 6110-00-542-2202
NSN 6130-00-314-0050
NSN 5950-00-062-0245
NSN 6645-01-590-5534
NSN 5915-01-537-3934
NSN 6650-00-976-2507
NSN 5999-01-110-3082
NSN 5999-01-643-5495
NSN 6685-01-386-5129