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 2925-01-197-7864
NSN 5965-01-443-3407
NSN 5965-01-327-9234
NSN 5960-01-117-8671
NSN 6150-00-983-7515
NSN 6130-01-090-3460
NSN 5996-01-623-8237
NSN 2925-01-271-8727
NSN 7035-01-583-6465
NSN 5910-00-764-0406
NSN 5855-01-634-0259
NSN 2925-01-327-3069