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 6610-01-421-4396
NSN 5975-01-097-2422
NSN 5950-01-631-2024
NSN 5998-01-289-4275
NSN 5930-00-753-2335
NSN 5895-01-181-5471
NSN 5999-01-437-6514
NSN 5996-01-416-8215
NSN 5998-01-547-7111
NSN 5935-01-605-7037
NSN 5910-01-465-8933
NSN 5945-01-231-9607