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 6620-00-527-9280
NSN 6220-01-055-4926
NSN 6240-01-239-4218
NSN 5930-01-528-8153
NSN 6610-01-235-5566
NSN 5960-01-174-6975
NSN 6130-01-548-9459
NSN 6105-01-024-1719
NSN 6610-01-204-9146
NSN 5960-00-933-4396
NSN 6685-00-260-0200
NSN 5996-01-392-9711