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 6105-01-429-4657
NSN 2925-00-590-3450
NSN 6610-00-277-7206
NSN 5855-01-511-0995
NSN 5910-00-857-9192
NSN 7035-01-376-3843
NSN 6320-00-343-1798
NSN 5855-01-562-6560
NSN 5999-01-227-2107
NSN 5990-00-513-5328
NSN 6320-00-004-9158
NSN 6685-01-296-6217