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 6320-01-462-2295
NSN 5965-00-444-6544
NSN 5999-00-950-6157
NSN 6650-01-354-5917
NSN 6610-01-642-1752
NSN 5996-01-425-1455
NSN 6240-00-448-4310
NSN 5905-01-068-3631
NSN 6150-01-196-5413
NSN 5996-01-197-7005
NSN 6105-00-284-7642
NSN 6110-01-444-4288