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 5905-00-467-9329
NSN 5835-00-074-3700
NSN 6135-01-447-5083
NSN 6105-00-402-2355
NSN 5910-01-603-2070
NSN 6150-01-135-9818
NSN 5950-01-541-4022
NSN 7035-01-105-0191
NSN 6105-01-577-5310
NSN 5965-01-380-5875
NSN 5965-01-516-1236
NSN 5910-01-551-4105