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 5985-00-039-5245
NSN 6220-01-412-0360
NSN 5930-00-426-6174
NSN 6145-00-082-1906
NSN 6220-01-506-6066
NSN 7035-01-092-5723
NSN 6220-01-167-7859
NSN 6150-00-729-9292
NSN 5996-01-442-7034
NSN 6150-00-753-2014
NSN 5975-00-197-9762
NSN 5945-00-244-1212