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 5960-00-906-6087
NSN 6220-01-627-3940
NSN 5950-01-027-1459
NSN 6105-00-373-3780
NSN 6150-00-982-1493
NSN 6240-00-407-1024
NSN 6150-01-359-8598
NSN 6110-01-255-9635
NSN 6645-00-283-6794
NSN 5835-00-145-3786
NSN 5895-01-634-0630
NSN 6150-01-281-2131