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 6130-01-090-0248
NSN 5945-01-164-5111
NSN 6610-01-437-2506
NSN 6150-01-411-5624
NSN 5990-01-400-3299
NSN 5950-01-022-1382
NSN 6150-00-952-1993
NSN 6320-00-070-4544
NSN 6650-01-556-3508
NSN 6105-01-356-7805
NSN 5950-01-459-3008
NSN 5920-01-338-4671