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 5895-00-138-0648
NSN 4140-01-046-4932
NSN 6135-01-348-8264
NSN 6645-00-171-7101
NSN 5985-00-843-5050
NSN 5915-01-633-9845
NSN 5855-01-147-6024
NSN 6145-01-444-6917
NSN 5950-01-308-6319
NSN 2925-01-556-0333
NSN 5835-00-173-4456
NSN 5925-00-312-4426