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 6610-01-141-7014
NSN 5895-00-835-8969
NSN 6130-01-433-6260
NSN 5895-01-097-2072
NSN 6240-01-258-5829
NSN 6110-01-608-7786
NSN 5905-01-410-7780
NSN 5910-00-626-9697
NSN 6320-01-015-9856
NSN 5895-00-596-8678
NSN 5920-01-437-6543
NSN 5999-00-518-4503