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 7035-01-196-3445
NSN 5998-00-961-8637
NSN 5930-00-471-2871
NSN 5965-01-388-3492
NSN 5935-00-057-0762
NSN 6150-01-113-6853
NSN 5950-00-246-6362
NSN 5990-00-655-0986
NSN 5996-01-183-3632
NSN 2925-01-330-2988
NSN 5945-01-165-9172
NSN 5950-01-234-8359