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 5855-01-023-3727
NSN 6620-00-218-1228
NSN 6620-01-146-4680
NSN 5965-00-529-0602
NSN 6650-01-442-7510
NSN 5998-01-166-8543
NSN 5905-01-256-1163
NSN 5910-00-078-2681
NSN 5835-01-455-3380
NSN 5905-00-500-5287
NSN 6320-01-425-1417
NSN 5930-00-052-5811