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 5996-01-194-3289
NSN 6220-00-233-7436
NSN 6145-01-422-6059
NSN 5945-01-554-4395
NSN 6645-01-157-9080
NSN 5910-01-516-2146
NSN 6135-00-455-2425
NSN 5835-01-504-0837
NSN 5915-01-207-0868
NSN 6135-00-243-8330
NSN 2925-00-406-4381
NSN 6135-00-833-9909