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 6150-00-816-3467
NSN 6135-00-927-5848
NSN 6610-01-501-2024
NSN 6145-01-346-8717
NSN 5935-01-574-6087
NSN 2925-00-105-3907
NSN 5975-01-644-8902
NSN 6145-01-397-2892
NSN 5945-00-525-0597
NSN 5950-00-239-7649
NSN 5835-01-359-2575
NSN 6110-00-722-8416