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 5996-01-591-1049
NSN 5935-01-450-8585
NSN 5999-01-462-2123
NSN 7035-01-444-4240
NSN 6135-01-121-3225
NSN 5990-01-127-9294
NSN 6650-01-068-3687
NSN 2925-01-248-2005
NSN 6150-01-592-8440
NSN 5905-00-899-6537
NSN 5945-00-330-9196
NSN 6110-01-590-0895