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 6610-00-868-9457
NSN 5965-01-366-5900
NSN 5985-00-216-7057
NSN 6610-01-458-3119
NSN 5996-00-080-7367
NSN 5895-00-508-0818
NSN 5935-00-148-9378
NSN 5975-01-165-6272
NSN 5930-01-581-6399
NSN 6135-01-226-4071
NSN 5920-00-291-1379
NSN 5998-00-368-0439