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 5835-00-711-3371
NSN 6150-00-089-6601
NSN 5990-01-215-0590
NSN 5910-00-689-6816
NSN 5915-01-538-0384
NSN 5985-01-485-3836
NSN 5960-01-153-8236
NSN 5920-01-044-2685
NSN 5998-01-193-7579
NSN 5998-00-633-5169
NSN 5950-01-527-3341
NSN 6685-01-424-0497