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 5835-01-370-8912
NSN 5925-01-091-4577
NSN 5895-00-288-5878
NSN 5910-01-162-7265
NSN 5930-01-446-6797
NSN 2925-01-470-5534
NSN 5905-00-161-4047
NSN 5920-01-611-4630
NSN 5915-01-359-4847
NSN 5835-01-456-3922
NSN 5975-00-891-9738
NSN 5915-01-166-7999