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 6650-00-769-3003
NSN 5985-01-274-7899
NSN 6145-01-211-0774
NSN 6130-01-157-9088
NSN 5999-01-314-6635
NSN 6130-01-026-5385
NSN 6150-00-088-8827
NSN 5950-00-468-6695
NSN 5930-01-534-3451
NSN 5935-00-223-6220
NSN 5945-00-836-8599
NSN 5960-00-156-4954