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 5965-01-600-0444
NSN 5835-00-451-2982
NSN 6130-01-620-0340
NSN 6135-01-142-6456
NSN 5998-01-559-1531
NSN 6110-01-163-2953
NSN 5930-01-485-0153
NSN 5999-00-939-5538
NSN 5960-01-553-4557
NSN 5895-01-616-2114
NSN 5935-01-479-5138
NSN 5920-00-074-4654