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 6130-00-821-3500
NSN 7035-00-488-9765
NSN 5930-00-210-0920
NSN 5985-00-082-1317
NSN 6150-00-374-9318
NSN 5855-00-110-9341
NSN 6145-00-407-3752
NSN 5999-01-467-1685
NSN 6145-01-359-4691
NSN 4140-01-513-9139
NSN 5905-01-004-8792
NSN 5935-01-465-4924