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 5998-01-199-3543
NSN 5950-01-307-3451
NSN 5990-00-950-6146
NSN 5915-01-381-1255
NSN 6110-01-395-8506
NSN 6135-00-951-3426
NSN 5998-01-515-7897
NSN 6110-01-380-1039
NSN 6610-01-364-0294
NSN 5915-01-191-3762
NSN 5925-01-508-0905
NSN 5920-00-362-1376