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 6105-00-549-2668
NSN 5895-01-309-6033
NSN 6150-00-271-9925
NSN 5835-01-359-2575
NSN 5855-00-560-0110
NSN 6130-00-833-7763
NSN 5950-01-540-2224
NSN 6105-01-128-9421
NSN 6135-01-142-2417
NSN 6135-00-050-7189
NSN 5960-01-161-4754
NSN 6610-00-146-7028