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 5965-01-582-2182
NSN 6135-01-528-6896
NSN 5910-01-037-0523
NSN 6645-01-550-9669
NSN 5895-01-374-9564
NSN 5925-00-477-2703
NSN 6240-00-184-5823
NSN 5910-01-253-6139
NSN 6105-01-227-2588
NSN 6240-01-106-6113
NSN 5975-00-681-5900
NSN 6645-01-536-7933