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 5935-00-069-4292
NSN 5996-01-218-5678
NSN 6105-01-526-2878
NSN 5990-01-472-2447
NSN 6105-00-585-4634
NSN 5996-01-123-9038
NSN 6135-01-070-3865
NSN 4140-00-299-6328
NSN 5835-00-010-4307
NSN 5965-01-372-7272
NSN 6610-01-152-1463
NSN 5975-01-510-6177