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 5985-00-925-4161
NSN 6135-01-503-1688
NSN 5950-01-366-2905
NSN 6650-00-248-4895
NSN 5975-01-052-3489
NSN 5895-00-891-4498
NSN 6220-01-050-5139
NSN 5950-01-146-5548
NSN 6135-01-142-6456
NSN 6220-01-093-6723
NSN 6220-01-439-9914
NSN 6320-00-174-1362