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 5905-01-513-0118
NSN 6105-00-551-3747
NSN 5985-01-367-5994
NSN 6110-01-456-0725
NSN 2925-01-545-2717
NSN 6150-01-466-4839
NSN 5950-00-353-9564
NSN 2925-01-448-2880
NSN 6610-01-484-8980
NSN 5915-01-060-3005
NSN 6105-00-501-7681
NSN 6150-01-145-9513