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 5965-00-831-2134
NSN 6620-01-274-3423
NSN 5985-01-591-2904
NSN 6130-00-836-3636
NSN 5930-00-079-7928
NSN 5855-01-060-8521
NSN 5935-01-485-0674
NSN 5965-01-003-2641
NSN 5950-01-330-9256
NSN 6150-00-462-2728
NSN 5945-01-029-6717
NSN 7035-00-834-2090