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 5895-01-108-7214
NSN 5960-01-564-5044
NSN 6645-01-317-1308
NSN 6105-01-230-5012
NSN 6610-01-583-8448
NSN 6145-01-033-9707
NSN 5910-01-142-8679
NSN 5935-00-116-5324
NSN 6150-00-081-2063
NSN 5998-01-563-6520
NSN 5998-01-601-7894
NSN 5925-01-406-9898