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 6610-00-227-8846
NSN 6135-00-985-7846
NSN 5915-01-542-7891
NSN 5999-01-448-9505
NSN 5960-01-485-2467
NSN 5996-01-121-5949
NSN 5920-00-045-4211
NSN 5999-01-456-5510
NSN 5935-00-618-0209
NSN 6320-00-186-6452
NSN 6240-01-547-2026
NSN 5895-01-148-4764