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 6610-01-102-0194
NSN 6130-00-940-1883
NSN 5905-01-039-2775
NSN 6105-00-233-3103
NSN 6685-00-221-4435
NSN 6135-01-106-7740
NSN 4140-00-147-3707
NSN 5855-00-288-1408
NSN 6150-01-112-4694
NSN 5965-01-396-7508
NSN 6150-01-406-3705
NSN 5915-01-169-4091