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 2925-00-355-5130
NSN 6320-01-513-9166
NSN 2925-00-595-7525
NSN 5895-00-789-4725
NSN 6130-01-429-3698
NSN 6320-01-129-9656
NSN 6135-00-315-1187
NSN 5925-01-095-6397
NSN 5965-01-294-6710
NSN 2925-01-239-6044
NSN 6105-01-381-2496
NSN 5895-01-611-8804