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 5945-00-528-1920
NSN 6220-01-474-5682
NSN 5895-00-818-8313
NSN 7035-01-116-6223
NSN 5905-00-526-9582
NSN 5960-01-553-4557
NSN 6620-00-286-5721
NSN 5855-01-050-4944
NSN 6105-01-127-2162
NSN 2925-01-649-7543
NSN 6145-01-325-9927
NSN 5910-00-816-9909