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 5910-00-115-2388
NSN 2925-01-633-4048
NSN 5835-01-351-3425
NSN 5965-00-043-3463
NSN 5835-01-098-4289
NSN 5920-01-227-1877
NSN 6645-00-113-4441
NSN 6105-01-501-8709
NSN 5965-01-011-9437
NSN 5975-01-307-8275
NSN 6685-01-511-0052
NSN 6685-00-707-4842