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 6220-00-552-0667
NSN 5996-00-279-1510
NSN 6105-01-655-2299
NSN 5996-01-189-9480
NSN 2925-01-074-9102
NSN 5945-01-230-0792
NSN 6145-00-903-4619
NSN 2925-01-327-3069
NSN 6145-00-161-2394
NSN 5990-01-052-5970
NSN 5998-01-334-9904
NSN 6610-01-542-8825