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 5999-01-327-4458
NSN 5935-01-031-1779
NSN 6220-00-043-3322
NSN 4140-00-224-2133
NSN 5975-01-067-0425
NSN 6135-01-306-6549
NSN 5835-01-373-9506
NSN 6240-01-026-1376
NSN 6320-01-054-3046
NSN 5960-01-182-3676
NSN 5925-01-311-9164
NSN 5835-01-062-4213