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 5945-01-341-4328
NSN 6240-00-076-2752
NSN 6110-01-203-9479
NSN 5910-00-563-5964
NSN 6110-01-381-7014
NSN 6105-01-091-2564
NSN 4140-00-232-9859
NSN 6620-00-988-0976
NSN 5950-00-935-0232
NSN 5985-01-308-1590
NSN 5910-01-617-3118
NSN 6610-00-893-0893