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 5960-01-023-3615
NSN 5895-00-930-9813
NSN 2925-01-231-6312
NSN 5835-01-266-4382
NSN 4140-00-215-8593
NSN 6110-01-029-2913
NSN 6110-00-530-3779
NSN 5960-00-813-5616
NSN 6130-01-538-5265
NSN 6130-00-959-5800
NSN 6650-01-328-8363
NSN 6650-01-005-8570