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 6610-01-194-1246
NSN 5920-00-035-4846
NSN 5935-01-549-5800
NSN 5998-01-375-1206
NSN 6220-01-572-3851
NSN 6645-01-437-9017
NSN 6650-01-347-8075
NSN 5996-01-633-7979
NSN 6105-01-029-3764
NSN 5960-00-220-9717
NSN 5930-01-219-3619
NSN 5895-00-236-8877