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 5910-01-414-9845
NSN 5950-01-109-3174
NSN 5985-00-199-8997
NSN 5895-00-636-4842
NSN 5996-01-054-3226
NSN 7035-01-258-7661
NSN 5930-01-462-5769
NSN 5999-01-262-4816
NSN 5855-01-257-5338
NSN 5965-00-802-6683
NSN 5895-01-120-3451
NSN 5855-00-079-2370