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 6110-01-236-8358
NSN 6685-00-055-7656
NSN 5935-01-461-1408
NSN 6220-00-669-6348
NSN 5960-00-307-3963
NSN 6645-01-537-1066
NSN 4140-00-787-4444
NSN 6110-01-225-3963
NSN 6240-01-409-2465
NSN 5996-01-445-1359
NSN 6135-01-093-7426
NSN 6105-01-634-0322