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 6650-01-576-2148
NSN 6110-00-816-9715
NSN 5895-01-590-1293
NSN 6240-01-100-7105
NSN 5910-01-422-7427
NSN 5999-01-032-4687
NSN 5925-01-502-8783
NSN 5996-00-185-9376
NSN 6105-01-044-0193
NSN 2925-01-255-6394
NSN 6110-01-190-2627
NSN 5999-01-563-7262