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 5910-01-071-6131
NSN 6610-01-218-6246
NSN 6130-00-800-9153
NSN 5965-01-378-7096
NSN 5990-01-226-2653
NSN 6135-00-497-0491
NSN 5930-01-496-0254
NSN 6135-01-656-0761
NSN 5920-01-529-3327
NSN 5965-01-501-7987
NSN 6645-00-978-2575
NSN 5960-01-226-0342