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 6110-00-881-1050
NSN 5835-01-592-2350
NSN 5835-01-218-5560
NSN 5990-01-339-5118
NSN 5975-00-541-8531
NSN 6610-01-542-2276
NSN 5985-01-541-4797
NSN 5895-01-445-2123
NSN 6105-01-018-3677
NSN 5950-01-503-0747
NSN 7035-01-226-2545
NSN 5905-00-916-9066