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 7035-01-563-1646
NSN 5925-01-469-8462
NSN 5950-00-271-7340
NSN 5935-01-276-6273
NSN 5950-00-772-9281
NSN 6145-01-489-1003
NSN 6110-01-471-2038
NSN 4140-00-900-6102
NSN 6650-01-140-4463
NSN 6650-00-563-3880
NSN 6150-01-559-4523
NSN 5985-00-244-8104