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 5965-00-403-7497
NSN 5998-01-270-0716
NSN 5920-00-253-4227
NSN 5960-00-266-6741
NSN 6220-01-247-9154
NSN 6320-01-354-4823
NSN 5999-01-101-2595
NSN 6240-00-543-9321
NSN 5999-01-500-1578
NSN 5910-01-104-9189
NSN 7035-01-318-2464
NSN 6130-01-331-5096