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 6105-01-021-1765
NSN 5960-00-707-3335
NSN 4140-01-159-9712
NSN 6320-01-214-0350
NSN 5945-00-135-6526
NSN 4140-01-356-5614
NSN 6110-00-177-8755
NSN 5950-00-539-7172
NSN 5998-01-487-3386
NSN 6240-01-325-8014
NSN 6145-01-072-9251
NSN 5990-00-456-8793