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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 6240-00-553-8891
NSN 7035-01-443-3052
NSN 5835-01-250-2939
NSN 5910-00-484-3130
NSN 5895-01-231-9159
NSN 6645-01-657-2604
NSN 5945-00-358-1141
NSN 5950-01-576-2741
NSN 7035-01-054-5208
NSN 6650-01-258-0811
NSN 6220-01-168-9383
NSN 2925-01-456-6840