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 7035-00-803-3056
NSN 5935-01-012-1850
NSN 6220-01-460-0180
NSN 5985-01-422-2552
NSN 6320-00-405-2348
NSN 5960-01-442-6234
NSN 5930-01-231-9520
NSN 5925-01-406-3490
NSN 7035-01-310-2587
NSN 6105-01-303-6695
NSN 6110-01-382-6857
NSN 5985-01-176-5354