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 6110-00-880-1292
NSN 7035-01-581-9174
NSN 5920-01-629-9748
NSN 5905-01-116-9373
NSN 6145-00-458-6437
NSN 7035-01-419-4317
NSN 5895-01-423-2773
NSN 4140-00-809-3602
NSN 6320-01-108-5933
NSN 5915-00-483-4368
NSN 5925-01-488-9668
NSN 5910-01-056-6251