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 6645-01-495-5553
NSN 5905-00-669-3268
NSN 5975-00-097-0177
NSN 5960-01-271-0928
NSN 6620-01-169-2406
NSN 6150-01-421-7892
NSN 5835-00-834-1286
NSN 5915-00-765-6969
NSN 5960-01-553-4557
NSN 5975-01-634-0678
NSN 5965-01-222-2613
NSN 6130-01-318-2204