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 5895-01-315-8413
NSN 2925-00-646-6099
NSN 5855-01-191-3404
NSN 5855-01-387-5224
NSN 5950-01-427-3723
NSN 5945-01-059-7074
NSN 6645-01-582-2601
NSN 5945-00-931-2161
NSN 5915-01-410-7822
NSN 5915-01-075-9002
NSN 5935-00-835-3501
NSN 5985-00-647-0587