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 7035-01-079-6560
NSN 5925-01-495-6382
NSN 5960-01-588-1441
NSN 5895-01-525-8189
NSN 2925-00-144-6405
NSN 6110-01-463-4433
NSN 5960-00-372-4876
NSN 5935-01-499-5189
NSN 5920-00-087-4223
NSN 5999-00-236-8995
NSN 5960-01-049-4374
NSN 5960-01-205-1517