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 5935-01-371-5025
NSN 6145-01-353-0106
NSN 5965-00-234-7338
NSN 2925-01-550-0177
NSN 6150-01-097-5261
NSN 6610-01-508-6272
NSN 5835-01-041-8104
NSN 5925-01-406-2879
NSN 6685-00-064-8189
NSN 6130-00-909-8063
NSN 5950-01-054-7458
NSN 6145-01-027-2055