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 6650-01-614-5281
NSN 6105-01-360-6378
NSN 6145-01-142-2234
NSN 5855-01-492-5666
NSN 5975-01-388-2752
NSN 6105-01-600-3652
NSN 5930-00-289-9901
NSN 6150-00-804-3870
NSN 6620-01-601-4314
NSN 5935-01-411-6917
NSN 5915-01-235-9851
NSN 5925-01-366-3568