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 6130-01-041-2574
NSN 5999-01-081-6961
NSN 5985-01-112-1223
NSN 5935-01-647-8378
NSN 5975-00-944-8484
NSN 5895-01-451-0035
NSN 7035-01-042-5308
NSN 5835-01-584-8538
NSN 6130-01-583-2059
NSN 5975-01-251-8646
NSN 5950-00-565-2687
NSN 5925-01-246-9620