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 6130-01-288-0660
NSN 5895-01-316-3148
NSN 5945-01-519-2369
NSN 6135-01-098-3020
NSN 5895-01-158-4932
NSN 5910-00-993-3830
NSN 5960-01-142-1995
NSN 5925-01-275-2170
NSN 5998-01-565-8963
NSN 5925-01-145-5484
NSN 5835-01-193-0391
NSN 6685-00-707-4842