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 5835-01-576-9013
NSN 5996-01-025-5683
NSN 6320-01-458-9567
NSN 6110-01-417-1811
NSN 6130-00-341-5175
NSN 5945-01-590-5762
NSN 6610-01-146-8061
NSN 5915-01-502-8853
NSN 5905-01-519-9021
NSN 5998-00-410-0944
NSN 6320-01-399-6177
NSN 5915-01-397-3319