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 5998-00-163-5675
NSN 5945-00-082-9542
NSN 7035-01-576-9617
NSN 5998-01-539-6523
NSN 5855-01-519-4991
NSN 5965-01-064-7496
NSN 5935-01-468-7209
NSN 5895-00-777-1704
NSN 6610-00-709-1692
NSN 5855-01-125-9167
NSN 5985-00-962-8415
NSN 6135-01-017-3001