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 5996-01-327-0220
NSN 6620-00-679-5830
NSN 6130-01-358-2615
NSN 6650-00-583-1735
NSN 5910-00-863-8796
NSN 4140-01-579-4964
NSN 5950-01-634-0677
NSN 5960-01-163-8905
NSN 6240-01-003-5797
NSN 5996-00-948-3835
NSN 5950-01-325-2573
NSN 5945-01-026-8859