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 6105-00-351-8009
NSN 6320-00-676-9387
NSN 5960-01-533-5162
NSN 5910-01-449-0427
NSN 5965-01-140-9446
NSN 5960-00-959-7413
NSN 6110-00-920-4855
NSN 6105-01-302-5454
NSN 4140-01-612-9936
NSN 6645-00-883-8086
NSN 5910-00-152-0506
NSN 6135-01-190-2628