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 5910-00-456-0824
NSN 7035-01-330-6768
NSN 6610-00-292-9895
NSN 5960-01-412-0619
NSN 5990-00-552-9365
NSN 5996-00-686-8818
NSN 5905-01-318-8048
NSN 6150-00-099-6919
NSN 5950-01-317-7726
NSN 6150-01-388-9544
NSN 6650-01-067-8946
NSN 6105-01-218-5911