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 6610-00-631-2715
NSN 4140-00-707-2963
NSN 5960-01-604-1158
NSN 5930-00-579-7748
NSN 5945-01-480-9584
NSN 5895-01-608-9049
NSN 6130-01-123-9041
NSN 6130-01-213-0196
NSN 5998-01-490-3897
NSN 2925-01-141-7563
NSN 5920-01-137-6107
NSN 5920-01-066-6926