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 5965-01-035-0415
NSN 2925-00-163-9016
NSN 6240-00-940-7090
NSN 6320-00-937-5625
NSN 5915-01-373-5512
NSN 6150-00-093-5783
NSN 7035-01-132-7209
NSN 6105-01-464-4251
NSN 6150-01-062-2404
NSN 6145-00-064-8612
NSN 5920-00-145-9806
NSN 5925-00-549-6803