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 6110-01-378-6659
NSN 6150-01-157-5152
NSN 6110-01-537-1159
NSN 5999-00-409-0267
NSN 5999-01-349-5890
NSN 6685-01-116-1603
NSN 5960-00-804-2215
NSN 6150-00-218-0891
NSN 5925-01-447-6549
NSN 5920-01-218-5742
NSN 6130-01-447-3164
NSN 6150-01-464-0053