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 6110-01-351-2026
NSN 7035-01-145-5059
NSN 5835-01-581-9433
NSN 5996-00-226-5364
NSN 6105-00-448-6927
NSN 5930-01-298-9967
NSN 5910-00-454-8260
NSN 6130-00-633-6187
NSN 6130-01-355-5109
NSN 7035-00-631-3782
NSN 5895-01-086-6238
NSN 6220-00-566-2848