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 6105-01-310-9799
NSN 5835-00-050-4330
NSN 5935-01-240-7848
NSN 5925-01-064-1086
NSN 5905-01-012-1190
NSN 5905-01-312-6647
NSN 6645-01-533-8408
NSN 6135-01-386-5709
NSN 6610-01-452-0135
NSN 5895-01-075-5530
NSN 5835-01-469-6706
NSN 5905-00-642-1858