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 6105-01-367-5643
NSN 6145-01-296-2096
NSN 7035-00-225-6499
NSN 5996-01-368-2906
NSN 6220-00-960-7591
NSN 5905-00-921-5252
NSN 6610-01-324-5221
NSN 7035-01-443-3052
NSN 5905-01-437-1480
NSN 5905-01-408-6226
NSN 6150-00-407-0318
NSN 6135-00-299-6918