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 5996-01-175-7881
NSN 6110-01-348-7424
NSN 5835-01-285-3704
NSN 5905-01-054-4559
NSN 6130-00-171-7400
NSN 5950-01-533-8399
NSN 5985-01-642-0201
NSN 5945-01-343-9283
NSN 6220-00-171-8638
NSN 6610-00-557-5896
NSN 6130-00-068-8967
NSN 6240-01-325-3544