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 5935-01-249-9841
NSN 5999-01-077-5649
NSN 6610-01-050-0955
NSN 5950-01-432-4997
NSN 6650-00-327-5846
NSN 5998-01-515-0467
NSN 6645-00-372-2618
NSN 5998-01-346-3229
NSN 6220-01-143-5761
NSN 5960-01-071-6267
NSN 5910-01-348-6156
NSN 5965-01-564-8023