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 5965-01-026-9865
NSN 5945-01-541-3754
NSN 6685-01-642-1738
NSN 2925-01-320-6512
NSN 5920-01-112-0730
NSN 5999-01-113-8120
NSN 6220-01-099-3429
NSN 6240-01-208-5916
NSN 6150-00-449-1189
NSN 5960-01-128-4431
NSN 6110-01-296-5039
NSN 5960-01-155-1962