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 6610-00-527-8892
NSN 5996-01-254-2510
NSN 6110-01-058-5321
NSN 5905-01-120-3759
NSN 6130-01-252-8823
NSN 5855-01-308-0955
NSN 6220-01-493-3251
NSN 5855-01-010-4921
NSN 5999-01-658-4606
NSN 6610-01-193-2169
NSN 5915-00-999-3470
NSN 6150-00-724-3826