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 6150-01-542-9571
NSN 5915-00-248-5824
NSN 5915-01-240-4190
NSN 5985-01-054-3873
NSN 5996-01-023-3317
NSN 5910-01-603-2070
NSN 5960-01-381-2478
NSN 6105-01-626-3093
NSN 6645-00-246-4934
NSN 5975-01-485-5749
NSN 6145-00-269-4271
NSN 5895-01-222-6064