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 6320-00-725-0754
NSN 5855-01-366-2429
NSN 6105-00-581-9479
NSN 5925-00-781-4535
NSN 5910-01-428-7105
NSN 6620-01-138-8250
NSN 5985-00-406-6311
NSN 5855-01-250-2421
NSN 6110-00-054-7278
NSN 2925-01-421-6101
NSN 5835-00-140-8646
NSN 6610-01-102-0194