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 2925-01-510-9378
NSN 6645-01-501-0576
NSN 5915-01-300-2610
NSN 6105-01-347-0070
NSN 5985-00-726-9190
NSN 5895-01-211-0855
NSN 6105-01-401-5361
NSN 6240-01-454-6831
NSN 6320-01-166-3602
NSN 5915-00-556-6163
NSN 5985-01-465-6220
NSN 5985-01-546-6594