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 5996-00-531-8835
NSN 7035-01-392-9838
NSN 6135-01-190-2628
NSN 5855-01-172-2228
NSN 7035-01-145-5059
NSN 5960-01-589-6846
NSN 5855-01-070-8084
NSN 6320-01-280-1014
NSN 5895-01-239-7776
NSN 5960-01-543-0235
NSN 5996-01-099-9801
NSN 6130-01-212-3035