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 6240-00-734-3276
NSN 6220-00-038-1712
NSN 5855-01-093-3080
NSN 5960-00-529-0583
NSN 5960-01-599-9821
NSN 6105-01-133-6941
NSN 5975-00-244-8946
NSN 5960-00-774-9468
NSN 6240-01-633-9357
NSN 5999-01-363-9936
NSN 6110-01-630-5245
NSN 4140-01-411-9952