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 5996-01-410-6984
NSN 5950-01-630-3152
NSN 6240-00-265-6538
NSN 5915-01-518-6679
NSN 5985-00-630-8977
NSN 5925-01-634-0664
NSN 5915-00-133-1899
NSN 5960-01-157-7009
NSN 5990-01-650-9034
NSN 7035-01-326-3875
NSN 5975-01-325-7635
NSN 6650-01-343-1708