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 6135-01-066-6904
NSN 5895-00-700-4622
NSN 5930-00-141-0535
NSN 7035-01-356-4025
NSN 6150-01-518-6146
NSN 5965-00-194-9428
NSN 7035-01-449-1846
NSN 5915-01-338-0771
NSN 5925-01-535-6212
NSN 5835-01-218-5560
NSN 5925-01-530-7738
NSN 5895-01-601-7821