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 6650-01-086-7003
NSN 5965-00-996-3541
NSN 6105-01-209-9153
NSN 5975-01-060-2680
NSN 4140-01-097-2008
NSN 5950-00-964-9949
NSN 6110-01-429-8668
NSN 4140-01-186-3977
NSN 5990-00-821-0103
NSN 5935-01-652-0755
NSN 5920-01-105-8879
NSN 6105-00-110-5861