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 5935-00-481-5767
NSN 5895-00-596-8678
NSN 6220-01-207-0523
NSN 7035-00-529-3128
NSN 5965-01-162-8689
NSN 6150-01-456-8946
NSN 5910-00-104-7260
NSN 5950-00-419-0230
NSN 6145-01-398-0607
NSN 7035-01-383-9357
NSN 5996-00-797-0882
NSN 6620-01-211-9063