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 5930-00-236-6124
NSN 5910-01-486-0877
NSN 6150-00-312-0354
NSN 5950-01-326-4728
NSN 4140-01-101-6864
NSN 5835-00-823-6116
NSN 5910-00-403-2605
NSN 5895-01-633-5326
NSN 5996-00-737-0646
NSN 6130-01-086-7007
NSN 5985-00-400-9859
NSN 6610-01-381-0652