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 5895-01-102-1230
NSN 5895-00-727-8708
NSN 5895-00-019-0023
NSN 6645-01-068-3042
NSN 5920-01-579-7485
NSN 2925-01-481-7170
NSN 5920-00-298-0700
NSN 5835-01-319-4636
NSN 6130-01-080-6057
NSN 5920-00-583-6960
NSN 6130-01-090-0248
NSN 5965-01-350-1890