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 6130-00-847-4089
NSN 7035-01-169-6551
NSN 5945-01-054-5556
NSN 5895-01-196-4041
NSN 5905-00-591-3679
NSN 5855-01-446-8197
NSN 6645-01-417-3039
NSN 5960-00-451-5824
NSN 6130-01-624-8360
NSN 6610-00-437-5681
NSN 5945-01-488-5602
NSN 5835-01-209-6410