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 6110-00-376-4834
NSN 5945-01-423-1009
NSN 6320-01-261-5983
NSN 5915-00-416-3823
NSN 5895-00-729-5479
NSN 5945-01-536-6731
NSN 6650-00-959-6869
NSN 5945-00-830-4402
NSN 6610-01-447-1082
NSN 4140-01-185-6214
NSN 5855-00-862-3345
NSN 5905-00-051-4931