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 5945-01-054-6753
NSN 5935-00-801-9490
NSN 5999-00-596-1930
NSN 6150-00-798-7004
NSN 6220-01-441-7800
NSN 6130-01-194-6609
NSN 6135-00-998-5884
NSN 6135-00-767-0331
NSN 6320-00-790-4844
NSN 6240-01-283-0404
NSN 5996-01-004-7832
NSN 5996-01-356-2994