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 5915-00-954-9294
NSN 5950-01-096-8878
NSN 5935-00-171-8837
NSN 6645-01-556-5263
NSN 5965-01-568-2681
NSN 5930-01-267-7869
NSN 5950-00-919-4455
NSN 4140-01-627-0681
NSN 6685-01-606-2802
NSN 6145-00-155-5297
NSN 5915-01-658-2788
NSN 5960-01-503-0362