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 6145-01-484-8735
NSN 4140-00-146-3269
NSN 5945-01-284-8977
NSN 6135-01-151-2705
NSN 5996-01-307-4403
NSN 5965-01-138-4979
NSN 5950-01-173-6317
NSN 6610-01-633-8931
NSN 5835-01-111-0969
NSN 5920-00-322-2122
NSN 5895-01-169-2639
NSN 5999-01-026-1140