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 6110-01-487-3916
NSN 6150-01-634-0575
NSN 5975-01-561-4834
NSN 5905-01-470-0842
NSN 5915-00-228-7033
NSN 5996-01-317-3676
NSN 5925-01-644-5658
NSN 5905-00-567-2861
NSN 6240-00-368-8541
NSN 6135-00-194-9354
NSN 6610-00-186-9180
NSN 5965-01-393-2054