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 5895-01-015-6247
NSN 5998-01-152-7423
NSN 6320-00-295-2854
NSN 5950-00-983-3707
NSN 6220-00-617-1843
NSN 6620-00-257-2783
NSN 5930-01-469-7351
NSN 6650-01-660-5441
NSN 2925-01-178-0063
NSN 5915-00-473-2112
NSN 5910-01-280-3590
NSN 6110-00-172-6126