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 5915-01-146-8951
NSN 5925-01-416-3229
NSN 5998-01-384-2634
NSN 5905-01-091-8091
NSN 5915-01-015-2486
NSN 5835-01-250-2939
NSN 6130-01-235-0425
NSN 6150-01-525-6945
NSN 5915-00-427-7798
NSN 6685-01-123-9275
NSN 6150-01-269-7659
NSN 5915-01-323-8596