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 6685-01-486-1933
NSN 6220-00-936-6355
NSN 6650-01-185-9067
NSN 5950-01-008-0254
NSN 5915-00-841-9182
NSN 6150-01-067-4720
NSN 5996-01-023-8370
NSN 6150-00-269-2211
NSN 6150-01-144-0103
NSN 6105-01-154-4145
NSN 5915-01-440-9141
NSN 5965-00-023-0944