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 6650-01-084-7377
NSN 6610-00-244-9142
NSN 5960-01-054-6494
NSN 5915-01-216-9089
NSN 2925-00-881-3770
NSN 5985-01-146-4877
NSN 5920-00-172-9232
NSN 5925-01-099-0974
NSN 2925-01-510-2221
NSN 6240-01-044-0073
NSN 6110-01-412-5019
NSN 2925-00-115-5857