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 6110-01-220-8639
NSN 6110-01-091-2431
NSN 5895-01-202-7491
NSN 5960-00-434-3193
NSN 5999-01-119-5642
NSN 6620-01-265-2887
NSN 5985-01-019-4911
NSN 5920-00-317-2219
NSN 5905-01-406-8710
NSN 6110-01-504-1271
NSN 5895-01-420-6197
NSN 6105-00-091-0665