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 6105-01-445-6022
NSN 6110-01-077-5543
NSN 6610-01-222-4573
NSN 6105-00-806-8827
NSN 6110-01-383-7195
NSN 5990-01-225-5374
NSN 5985-00-170-4156
NSN 5920-01-462-7524
NSN 6220-01-281-6027
NSN 5996-00-665-2869
NSN 6610-01-348-5719
NSN 5950-00-483-6279