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 5835-01-193-6192
NSN 5835-00-010-4307
NSN 6150-01-501-9697
NSN 4140-01-148-7070
NSN 6220-01-578-6554
NSN 6105-01-591-0319
NSN 6240-01-495-0597
NSN 5985-01-435-8149
NSN 6130-00-952-2970
NSN 5950-00-618-0024
NSN 6610-01-340-1761
NSN 5925-00-484-0495