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 5935-00-608-6745
NSN 6105-01-464-5362
NSN 5935-01-023-9803
NSN 5985-00-862-1112
NSN 6610-01-070-0230
NSN 6220-01-352-5425
NSN 6135-01-054-2462
NSN 5945-00-542-1281
NSN 6240-01-187-6878
NSN 2925-01-460-1601
NSN 5975-01-646-3830
NSN 6240-01-585-2223