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 5945-00-721-1919
NSN 6150-01-378-6573
NSN 6610-00-805-8011
NSN 7035-01-246-3086
NSN 6240-01-486-0789
NSN 5960-01-536-9763
NSN 6320-01-349-5515
NSN 6130-00-171-5029
NSN 5985-01-414-5120
NSN 6150-01-025-1467
NSN 6610-01-357-1940
NSN 5855-00-586-6255