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 5960-01-295-8924
NSN 5930-01-385-1085
NSN 6645-01-115-4953
NSN 5996-00-475-9778
NSN 5965-01-457-3543
NSN 6110-01-602-3242
NSN 5950-01-528-7982
NSN 5930-00-070-1893
NSN 2925-01-297-9759
NSN 6240-01-328-0718
NSN 5930-00-459-6594
NSN 6105-00-431-3702