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 6105-01-318-7669
NSN 5855-00-862-3345
NSN 5915-01-543-4021
NSN 5945-00-355-9497
NSN 6645-01-147-4603
NSN 5835-01-471-2861
NSN 6110-01-085-5172
NSN 6130-01-179-7802
NSN 6135-01-286-9563
NSN 6135-00-891-4944
NSN 6645-01-196-6277
NSN 6135-01-019-7687