Graph Tech PT-6400-00 Black TUSQ XL Slotted Acoustic Guitar Nut

Best for

Replacing or upgrading a dimensionally compatible six-string Gibson-style acoustic nut when a black, pre-slotted, lubricated Graph Tech material is preferred.

Who should skip

Skip it if the guitar needs a different length, thickness, height, radius, string spacing, handedness, colour, unslotted blank, or a drop-in part with no final fitting.

Watchouts

PT-6400-00 is Black TUSQ XL. Do not confuse it with white TUSQ PQ-6400-00 or white TUSQ XL PQL-6400-00. “Gibson style” is a dimensional family, not a guarantee of drop-in fit for every model or production year. Pre-slotted does not mean installation-ready without measurement and final setup.

Likely add-ons

• measurement tools for confirming the existing nut and slot
• appropriate files and abrasives or a qualified guitar technician
• installation adhesive only as appropriate for the instrument and repair method

Verify before buying

• Does the existing nut measure approximately 44.64 × 4.95 × 8.23 mm?
• Does 37.5 mm string spacing and R-16 radius match the instrument?
• Is a right-handed black six-string pre-slotted nut required?
• Can the installer perform final sanding and string-slot setup?
• Is PT-6400-00 required rather than PQ-6400-00 or PQL-6400-00?