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 5915-01-653-7259
NSN 6105-01-460-1958
NSN 5985-01-157-5547
NSN 2925-00-363-9878
NSN 6240-01-109-0922
NSN 7035-01-307-5366
NSN 6105-01-270-0474
NSN 5945-01-604-8977
NSN 6610-00-238-1693
NSN 5950-01-484-1826
NSN 5915-00-280-1428
NSN 5975-01-259-6061