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 6220-01-275-7007
NSN 6650-01-160-1110
NSN 6135-01-366-9633
NSN 6105-01-427-2336
NSN 5996-01-124-2407
NSN 5925-00-247-3050
NSN 5925-00-863-4232
NSN 5950-00-180-4179
NSN 2925-01-290-8208
NSN 5935-01-127-3918
NSN 7035-01-164-2136
NSN 6240-01-627-4142