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 5965-00-590-7995
NSN 5999-01-219-4195
NSN 5925-01-556-4433
NSN 4140-00-824-3285
NSN 6220-00-229-2039
NSN 6105-01-450-5360
NSN 5930-01-167-8499
NSN 4140-01-651-7192
NSN 5998-01-069-3721
NSN 6685-00-539-8060
NSN 5960-01-260-0710
NSN 5935-01-627-0244