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 5910-01-484-6243
NSN 5965-00-081-9412
NSN 5895-00-115-9236
NSN 6610-01-591-3041
NSN 5925-01-469-6667
NSN 5975-00-111-3208
NSN 5999-00-596-1930
NSN 5930-00-960-9240
NSN 2925-01-055-7607
NSN 6130-01-105-5901
NSN 5895-01-249-4030
NSN 6220-00-930-3146