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 5930-01-010-4553
NSN 6610-00-684-7683
NSN 5996-01-583-6678
NSN 5895-00-253-0932
NSN 5960-00-633-7670
NSN 5965-01-599-1863
NSN 6240-00-536-1867
NSN 6645-01-423-7760
NSN 6130-01-351-7238
NSN 5990-01-188-7309
NSN 6220-00-218-0857
NSN 5996-01-299-3428