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 6105-01-026-9114
NSN 6150-00-004-1225
NSN 5895-00-097-0045
NSN 5905-00-406-5430
NSN 5975-01-412-1634
NSN 6110-01-435-5441
NSN 5835-01-024-9249
NSN 6645-01-560-3034
NSN 6645-01-498-5102
NSN 5920-00-689-1533
NSN 5960-00-140-9583
NSN 5975-01-363-9453