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 6610-01-654-4685
NSN 5999-00-155-8066
NSN 6110-01-163-1228
NSN 6145-01-648-0285
NSN 6130-01-203-5704
NSN 6645-01-175-3568
NSN 5915-00-539-7673
NSN 6105-01-498-1286
NSN 5945-00-088-4269
NSN 6145-00-246-9776
NSN 6645-01-082-0518
NSN 5985-01-331-3195