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 6610-01-532-4217
NSN 5835-01-442-6079
NSN 5935-01-443-2429
NSN 6150-01-648-8144
NSN 6220-01-113-9952
NSN 5935-00-260-6051
NSN 5960-01-005-6606
NSN 5945-00-924-2026
NSN 5930-01-256-0307
NSN 5910-01-387-4954
NSN 5920-01-250-8793
NSN 5910-01-467-3009