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 6320-01-141-3791
NSN 5945-01-483-4935
NSN 5960-00-395-2506
NSN 5855-01-473-6076
NSN 5975-01-481-3858
NSN 6610-01-351-0072
NSN 6320-00-228-5678
NSN 5945-01-547-8996
NSN 5905-01-082-4315
NSN 5996-01-455-7666
NSN 5835-00-447-1924
NSN 5950-00-529-0007