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 6110-00-412-8198
NSN 5996-01-574-0074
NSN 2925-00-917-2842
NSN 6135-00-577-8429
NSN 5975-00-321-1146
NSN 5835-01-416-6449
NSN 5999-01-428-4401
NSN 6650-00-416-2953
NSN 6110-01-350-3449
NSN 5945-01-602-7409
NSN 5965-00-951-8510
NSN 6240-00-594-7138