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 5895-00-192-3854
NSN 6620-01-068-0046
NSN 5915-01-353-5442
NSN 6220-01-603-3149
NSN 6220-00-338-8923
NSN 5996-00-983-8667
NSN 5975-00-518-4977
NSN 5835-01-384-3206
NSN 6240-00-829-4179
NSN 6685-01-148-2586
NSN 5960-00-915-6269
NSN 6110-00-553-1799