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 5935-01-054-6332
NSN 7035-00-215-3272
NSN 6105-01-062-4584
NSN 5945-01-293-2561
NSN 6320-01-323-7565
NSN 6145-00-445-7839
NSN 6650-00-389-4111
NSN 5945-00-657-4681
NSN 6685-01-466-9005
NSN 6685-01-460-8196
NSN 5985-00-931-2564
NSN 5985-01-254-4534