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 6150-01-634-0575
NSN 6610-01-100-3662
NSN 5905-00-227-0117
NSN 5975-00-204-9190
NSN 5960-00-354-3364
NSN 6135-01-132-6310
NSN 6130-01-433-9762
NSN 5999-01-652-6830
NSN 5920-01-411-6784
NSN 5915-01-117-0733
NSN 5945-01-131-5684
NSN 5950-01-152-1936