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 6610-01-091-3740
NSN 5960-01-593-1936
NSN 6220-01-488-3247
NSN 6130-00-285-8119
NSN 6135-01-264-0382
NSN 6135-00-500-2082
NSN 5996-01-079-3651
NSN 5960-00-943-1571
NSN 7035-01-115-8996
NSN 5960-00-148-4493
NSN 6110-00-255-6502
NSN 5950-00-987-5601