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 6110-01-318-6537
NSN 5915-01-173-2904
NSN 6135-01-309-8414
NSN 5915-01-087-8923
NSN 5905-00-783-7498
NSN 5920-00-298-0700
NSN 5895-01-020-7771
NSN 5835-01-100-3265
NSN 5895-01-158-3529
NSN 5965-01-595-4213
NSN 5990-01-315-3754
NSN 5996-01-135-7878