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 5945-01-374-3326
NSN 6320-01-296-3181
NSN 5895-01-508-4343
NSN 5996-01-561-7061
NSN 5920-00-238-6491
NSN 5930-00-731-4761
NSN 5935-01-146-4797
NSN 6220-01-579-0349
NSN 5910-00-198-5306
NSN 5905-00-308-7089
NSN 5930-01-060-3800
NSN 5910-01-144-1141