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 6110-01-454-6735
NSN 6105-01-291-6188
NSN 6150-01-449-8714
NSN 6220-01-475-1779
NSN 6620-01-122-0238
NSN 5999-01-005-0321
NSN 6610-01-440-0604
NSN 5895-00-932-1577
NSN 5910-01-327-4640
NSN 6240-01-425-1939
NSN 5965-01-414-3753
NSN 6620-01-286-2204