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 5835-00-126-2961
NSN 6650-01-388-1140
NSN 6685-01-302-3996
NSN 5945-01-139-0204
NSN 5895-01-278-6761
NSN 5960-01-030-3191
NSN 6150-00-340-3203
NSN 5985-01-414-7473
NSN 6130-01-523-0795
NSN 6135-01-485-4512
NSN 5975-00-836-9160
NSN 5999-00-877-5091