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 6130-01-602-8267
NSN 6610-01-153-0700
NSN 6135-01-026-9960
NSN 7035-01-472-4207
NSN 5985-01-485-0456
NSN 5895-01-435-6139
NSN 7035-01-058-8728
NSN 6105-00-565-3227
NSN 6240-01-410-8958
NSN 5895-01-643-9301
NSN 6150-01-394-5316
NSN 6220-00-416-6215