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 2925-01-225-0713
NSN 6110-00-489-8810
NSN 5965-01-173-9106
NSN 6610-01-452-2715
NSN 6105-01-643-1465
NSN 6645-01-595-7659
NSN 6130-00-222-9027
NSN 6105-01-380-8914
NSN 6220-00-054-5741
NSN 6620-01-015-2470
NSN 5990-01-334-8634
NSN 5905-00-194-8837