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 6150-01-026-3268
NSN 5996-01-186-5671
NSN 5835-00-679-4604
NSN 7035-01-606-1485
NSN 5999-00-517-4455
NSN 5998-01-372-4358
NSN 7035-01-099-2311
NSN 6240-00-393-1161
NSN 5895-01-330-5739
NSN 5835-01-027-3931
NSN 5960-01-449-1310
NSN 5945-01-534-9686