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 5965-01-185-2026
NSN 5915-00-145-6181
NSN 6105-01-634-0322
NSN 5835-01-268-1924
NSN 7035-01-543-9152
NSN 6610-00-244-9142
NSN 5990-00-916-8668
NSN 6150-00-452-1086
NSN 5910-01-599-8844
NSN 5965-00-362-2158
NSN 6610-00-664-2190
NSN 6145-00-006-4954