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 6645-00-130-8464
NSN 4140-00-035-4997
NSN 5925-01-631-9182
NSN 5998-01-403-2586
NSN 7035-00-760-5479
NSN 6620-01-091-1038
NSN 5950-00-398-9754
NSN 5975-01-363-3724
NSN 6220-01-207-7229
NSN 5999-01-341-9201
NSN 6135-01-151-2705
NSN 5965-01-134-6812