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 5999-01-465-8305
NSN 5965-01-130-1965
NSN 5999-00-047-4614
NSN 6150-00-932-4036
NSN 5895-01-062-2074
NSN 6685-00-313-9239
NSN 5945-01-289-9407
NSN 6620-00-777-3481
NSN 6130-01-461-4958
NSN 5965-01-326-9860
NSN 5999-01-598-1714
NSN 5945-00-483-4634