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 7035-00-408-8170
NSN 5998-00-759-0618
NSN 6240-01-585-0655
NSN 5965-00-139-4870
NSN 6650-01-571-7122
NSN 5895-01-618-1202
NSN 5945-01-556-7258
NSN 6620-00-849-0450
NSN 5945-01-347-5808
NSN 5895-00-050-2044
NSN 5920-01-122-6303
NSN 5975-01-492-6399