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 6685-00-410-2625
NSN 5985-01-541-2715
NSN 5998-00-469-1518
NSN 5965-01-452-4189
NSN 6240-01-585-3611
NSN 5935-00-466-9825
NSN 6150-01-068-4307
NSN 5996-01-486-7788
NSN 5930-01-363-8735
NSN 5998-01-214-8888
NSN 6105-01-413-3065
NSN 5935-01-487-3783