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 5915-01-332-4492
NSN 6610-01-479-0466
NSN 6135-01-513-1515
NSN 5950-01-226-2448
NSN 5930-00-837-0161
NSN 5996-01-088-8715
NSN 2925-01-453-1606
NSN 6135-01-372-6985
NSN 6645-01-062-0905
NSN 6130-00-197-9371
NSN 6150-01-217-1509
NSN 5945-00-275-7927