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 6105-00-404-0017
NSN 6105-01-396-5634
NSN 5945-01-418-5357
NSN 5915-00-916-8017
NSN 6145-01-358-6796
NSN 6150-01-429-8315
NSN 5855-00-832-9341
NSN 5985-01-018-4646
NSN 6150-01-055-6974
NSN 6610-00-446-2880
NSN 6610-00-928-5104
NSN 5996-00-823-8487