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 5855-01-446-1936
NSN 5930-00-078-3579
NSN 5895-00-601-8945
NSN 6105-01-623-3590
NSN 5998-00-026-1918
NSN 5835-00-912-5656
NSN 5965-01-114-9086
NSN 5920-00-226-0227
NSN 5960-00-776-5509
NSN 7035-00-104-7613
NSN 6620-00-242-3237
NSN 6220-01-333-4733