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 7035-01-202-4842
NSN 6610-01-577-8685
NSN 5996-01-094-9754
NSN 6150-01-425-5635
NSN 6240-01-529-6375
NSN 2925-00-329-2282
NSN 6130-01-388-0392
NSN 6650-01-411-1581
NSN 5998-00-878-2012
NSN 5950-01-299-9082
NSN 5965-01-073-6047
NSN 6685-01-203-7372