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 6145-00-286-9588
NSN 4140-00-086-6909
NSN 5910-00-584-6484
NSN 6105-00-005-4229
NSN 5999-01-349-0870
NSN 6130-00-952-2970
NSN 7035-00-997-6212
NSN 5920-00-467-5216
NSN 5930-01-480-2333
NSN 5895-01-152-6033
NSN 6650-01-229-4224
NSN 5935-01-633-1031