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 5965-01-101-9094
NSN 5855-00-014-5008
NSN 5945-01-634-0588
NSN 6150-01-428-3939
NSN 5855-01-023-3727
NSN 6320-01-585-8468
NSN 6220-00-491-8929
NSN 6240-01-527-0849
NSN 5950-00-424-3791
NSN 5999-01-412-6503
NSN 6320-01-416-9357
NSN 5855-00-797-8217