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 6685-01-437-7685
NSN 5895-01-463-9041
NSN 2925-00-080-2124
NSN 6650-01-613-3642
NSN 6645-01-619-4813
NSN 5905-01-348-1157
NSN 5925-01-241-2698
NSN 5915-01-540-4183
NSN 5935-00-406-9956
NSN 6220-01-335-7801
NSN 5998-01-037-8058
NSN 6130-00-044-4281