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 6685-01-479-6784
NSN 5950-01-227-7095
NSN 6610-01-200-6861
NSN 5950-01-368-9239
NSN 5990-01-316-9477
NSN 6105-01-652-7692
NSN 7035-00-368-0444
NSN 5910-00-606-0862
NSN 5835-01-390-4667
NSN 6320-01-380-7372
NSN 6220-00-438-5049
NSN 6130-01-025-1253