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 2925-01-411-8002
NSN 5835-00-233-6327
NSN 5935-00-394-1519
NSN 5905-00-942-6875
NSN 6110-00-185-2021
NSN 5965-01-188-8530
NSN 6220-00-023-4344
NSN 5945-01-548-8485
NSN 6240-01-380-9014
NSN 5930-01-606-8390
NSN 6145-00-186-6291
NSN 6130-00-103-7082