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 6110-01-400-4207
NSN 5985-01-554-3806
NSN 6150-01-100-3813
NSN 5999-01-649-5912
NSN 5905-00-799-1499
NSN 6320-01-125-3361
NSN 5945-00-766-5749
NSN 5996-00-004-1850
NSN 5915-00-945-8986
NSN 7035-01-227-7492
NSN 5835-01-218-3756
NSN 5915-01-441-7857