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 2925-01-326-0908
NSN 6610-01-605-1509
NSN 5945-00-572-6342
NSN 6650-01-469-8979
NSN 5935-01-555-4269
NSN 6135-01-468-6491
NSN 6240-00-309-7767
NSN 5950-01-376-5368
NSN 6610-01-371-3006
NSN 6610-00-424-8780
NSN 6320-01-215-1133
NSN 5950-01-284-7325