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 6320-00-779-5923
NSN 6130-00-974-7687
NSN 6320-00-403-6003
NSN 5960-00-160-2183
NSN 5999-01-364-2490
NSN 5999-01-009-9584
NSN 5985-01-206-4086
NSN 6685-01-265-5107
NSN 6610-01-023-1918
NSN 5985-01-415-2225
NSN 5950-01-398-7210
NSN 5915-00-482-0468