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 5895-01-027-3774
NSN 6105-01-072-4484
NSN 5905-01-055-6277
NSN 6620-01-649-9948
NSN 7035-01-008-7248
NSN 6610-01-572-1715
NSN 5996-01-595-6529
NSN 5998-01-355-2684
NSN 6220-01-344-5014
NSN 5999-00-247-8556
NSN 6320-01-612-7035
NSN 6220-01-381-8720