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 5965-01-650-6481
NSN 2925-01-127-0167
NSN 6685-00-402-2458
NSN 2925-01-271-8727
NSN 6145-00-286-9588
NSN 5965-00-034-4249
NSN 5915-01-572-5093
NSN 2925-01-483-9147
NSN 2925-00-388-8932
NSN 6220-01-461-0304
NSN 5975-01-540-8809
NSN 6150-01-071-6210