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 5965-00-221-5789
NSN 6130-00-205-1714
NSN 5855-01-147-4785
NSN 5930-01-539-3119
NSN 5915-00-230-8803
NSN 5925-00-854-7790
NSN 5835-00-198-4936
NSN 6220-01-363-0152
NSN 5895-01-449-8433
NSN 4140-01-266-3658
NSN 5960-01-350-5332
NSN 6620-01-012-2852