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 5945-00-452-1027
NSN 6145-01-281-7222
NSN 5960-00-008-1455
NSN 5835-01-045-6371
NSN 6145-01-500-2716
NSN 5835-01-136-3394
NSN 6610-01-433-2219
NSN 6135-01-368-2785
NSN 6240-00-052-0786
NSN 5985-01-053-0320
NSN 6150-01-485-7659
NSN 6645-01-036-5027