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 5950-01-036-7075
NSN 2925-01-208-6638
NSN 6320-00-466-0371
NSN 6130-00-954-2859
NSN 2925-00-048-7172
NSN 5996-00-519-9875
NSN 5990-01-320-1412
NSN 5895-01-466-2448
NSN 5935-01-618-7855
NSN 5965-01-359-8172
NSN 5895-00-469-2256
NSN 5835-00-289-9080