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 5960-00-710-9818
NSN 5965-01-600-0566
NSN 6220-01-159-4150
NSN 5910-01-250-2371
NSN 5895-00-518-4954
NSN 2925-01-159-8312
NSN 6105-01-357-9080
NSN 6220-01-377-9133
NSN 5920-00-678-7467
NSN 4140-01-026-2725
NSN 5975-01-483-1515
NSN 6130-01-632-8631