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 6150-01-267-2390
NSN 6145-01-185-3386
NSN 5996-01-506-7585
NSN 6320-00-393-0138
NSN 6150-01-400-4211
NSN 5905-01-420-6349
NSN 6610-00-899-1751
NSN 5965-01-307-8301
NSN 6105-00-248-5772
NSN 5975-01-246-2099
NSN 6130-00-518-1723
NSN 5950-01-152-6927