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 6130-00-735-3993
NSN 6130-01-260-2998
NSN 5905-01-435-6357
NSN 6240-01-142-2963
NSN 6135-01-517-6060
NSN 6130-00-883-4797
NSN 5950-00-859-9028
NSN 5950-01-280-5469
NSN 6130-01-585-4579
NSN 5910-00-710-8261
NSN 6135-01-561-5945
NSN 6610-01-464-5517