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 6650-00-442-0567
NSN 6145-01-286-7268
NSN 6145-00-327-4770
NSN 5835-00-127-6437
NSN 5855-01-481-3906
NSN 6220-00-470-2703
NSN 5950-00-727-6128
NSN 5920-01-467-4079
NSN 5945-01-407-8703
NSN 5960-00-172-7889
NSN 5985-01-242-3920
NSN 5905-00-695-4255