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 6650-00-852-2736
NSN 6220-01-256-4555
NSN 2925-01-473-9544
NSN 5855-01-394-3688
NSN 6145-00-735-7764
NSN 6130-01-420-0700
NSN 5998-01-131-5435
NSN 6220-00-396-0039
NSN 7035-01-246-3086
NSN 7035-00-020-2227
NSN 5950-01-398-4813
NSN 5855-01-027-1571