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 5935-01-407-7091
NSN 7035-00-177-1557
NSN 5960-01-257-0225
NSN 6320-00-857-4073
NSN 5905-00-840-6812
NSN 6145-01-367-1404
NSN 5996-00-799-3549
NSN 5920-01-269-4191
NSN 6610-01-609-3466
NSN 5895-01-036-1384
NSN 5945-01-075-6528
NSN 5996-00-747-9770