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 5950-01-444-2902
NSN 6240-01-611-1076
NSN 5930-01-630-8281
NSN 5895-01-029-6225
NSN 6105-01-502-9448
NSN 5945-00-993-2385
NSN 5925-00-264-5649
NSN 2925-01-633-4048
NSN 6130-01-570-5357
NSN 5945-01-420-5891
NSN 5985-00-942-4918
NSN 6620-01-599-2011