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 6610-00-786-6883
NSN 6685-01-303-6512
NSN 5996-01-349-3333
NSN 5895-01-281-3141
NSN 6110-01-257-6801
NSN 6110-00-248-7475
NSN 6105-00-909-2146
NSN 5910-01-334-5150
NSN 5945-01-433-3390
NSN 5835-00-518-4507
NSN 6145-01-479-0528
NSN 5935-01-529-0936