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 5935-01-634-0668
NSN 5905-00-988-7250
NSN 6145-01-566-8724
NSN 5996-01-596-1034
NSN 5945-01-371-4228
NSN 5915-01-425-4737
NSN 5915-01-097-7436
NSN 5985-01-660-9670
NSN 6105-01-010-0827
NSN 5975-01-130-8501
NSN 6220-01-058-0058
NSN 5835-01-326-3664