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 5930-01-172-1449
NSN 5960-01-094-4134
NSN 6610-01-365-7796
NSN 5950-01-597-4984
NSN 5975-00-196-0698
NSN 5920-00-196-3631
NSN 2925-00-406-4381
NSN 6130-01-256-1708
NSN 6620-00-100-4517
NSN 6610-01-501-4532
NSN 5935-01-033-4995
NSN 6105-01-393-7429