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 6645-00-796-7206
NSN 5905-01-040-0406
NSN 5975-01-634-0678
NSN 6620-01-486-2555
NSN 6320-01-346-5158
NSN 5915-00-009-3022
NSN 6105-00-681-6261
NSN 6150-01-577-8843
NSN 5835-00-198-4936
NSN 6150-00-394-4934
NSN 6620-01-203-4369
NSN 6645-01-462-2101