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 6220-01-463-3380
NSN 5935-01-604-8866
NSN 5999-01-519-9353
NSN 6650-01-335-6669
NSN 5965-00-497-8820
NSN 5998-00-587-3341
NSN 5925-01-224-6191
NSN 6105-01-584-0825
NSN 5945-01-055-5091
NSN 5835-01-238-3381
NSN 5925-01-070-1120
NSN 5965-01-046-9619