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 5915-01-388-2911
NSN 6110-01-411-5687
NSN 6110-01-141-7745
NSN 5905-01-037-4169
NSN 2925-00-781-1273
NSN 5996-00-636-4849
NSN 6650-01-010-0107
NSN 5996-01-382-9710
NSN 7035-01-145-5059
NSN 6650-00-879-5834
NSN 6610-00-186-9180
NSN 6110-01-330-2699