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 5985-01-130-0315
NSN 6650-01-139-0022
NSN 5910-01-152-1230
NSN 6240-01-630-0123
NSN 6650-00-442-0567
NSN 5915-00-025-1763
NSN 6110-01-142-3853
NSN 5975-00-315-8369
NSN 6150-01-062-2404
NSN 6110-01-144-9744
NSN 5895-01-323-6357
NSN 5905-01-556-2454