PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-63-4Mandrel,dental Handpiece

Coltene/whaledent Inc. · NSN 6520-00-935-9872 · FSC 6520 · No Item Name Available
Verified by PartsTable
NSN 6520-00-935-9872 — this item is cataloged by the U.S. Government under National Stock Number 6520-00-935-9872. Primary manufacturer part number: A-63-4.
Features
  • Mandrel,dental Handpiece — FSC 6520
  • Design Designation: FRICTION
  • Handpiece Type for Which Designed: ANGLE
  • Design Type: SLOTTED
  • Material: STEEL CORROSION RESISTING
  • Supplementary Features: FOR USE W/CONTRA-ANGLE HANDPIECE,6520-00-019-9267 AND DRIVING PIN,6520-00-935-9869 AND 6520-00-420-0508
  • Surface Treatment: PASSIVATE
  • Shank Diameter: 0.090 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Mandrel,dental Handpiece, cataloged under National Stock Number 6520-00-935-9872, is classified within Federal Supply Class 6520 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Coltene/whaledent Inc.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6520-00-935-9872
Primary Part NumberA-63-4
Item NameMandrel,dental Handpiece
FSC / FSG6520 / 65 — No Item Name Available
ManufacturerColtene/whaledent Inc.
StatusCANCELLED
Design DesignationFRICTION
Handpiece Type for Which DesignedANGLE
Design TypeSLOTTED
MaterialSTEEL CORROSION RESISTING
Supplementary FeaturesFOR USE W/CONTRA-ANGLE HANDPIECE,6520-00-019-9267 AND DRIVING PIN,6520-00-935-9869 AND 6520-00-420-0508
Surface TreatmentPASSIVATE
Shank Diameter0.090 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN
Head Diameter0.076 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5945-00-063-528690528 INTERCHANGEABLE
Relay,electromagnetic
B.c. Systems Inc. Dba Bc Systems Inc
5342-00-496-9646BP4849 INTERCHANGEABLE
Arm,hand Crank
Burke Products Inc
2540-00-769-6373450054 INTERCHANGEABLE
Button Asy Horn
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
4730-01-060-6467 INTERCHANGEABLE
Bushing,pipe
4730-01-580-95531010390 INTERCHANGEABLE
Fitting
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
A-63-4 Coltene/whaledent Inc. (USA)
Related Parts
5945-00-063-5286INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
90528
5342-00-496-9646INTERCHANGEABLE
ARM,HAND CRANK
BP4849
2540-00-769-6373INTERCHANGEABLE
BUTTON ASY HORN
450054
4730-01-060-6467INTERCHANGEABLE
BUSHING,PIPE
4730-01-580-9553INTERCHANGEABLE
FITTING
1010390

Frequently Asked Questions

What is NSN 6520-00-935-9872?

NSN 6520-00-935-9872 is a Mandrel,dental Handpiece, manufactured by Coltene/whaledent Inc., classified under FSC 6520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6520-00-935-9872?

NSN 6520-00-935-9872 has 1 cross-referenced part number: A-63-4 (Coltene/whaledent Inc.).

What NSN replaces 6520-00-935-9872?

There are 5 known substitutes for 6520-00-935-9872: 5945-00-063-5286, 5342-00-496-9646, 2540-00-769-6373 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-63-4?

Key specifications for A-63-4: Overall Length: 0.870 INCHES NOMINAL IN; Design Designation: FRICTION; Handpiece Type for Which Designed: ANGLE; Special Features: LATCH TYPE; LONG; AUTOMATIC CLUTCH; PIN DRIVING TYPE HEAD; FOR HOLDING AND DRIVING THREAD-FORMING PIN INTO PIN HOLE IN DENTIN OF TEETH FOR RETENTION OF RESTORATIONS IN THE THREAD-FORMING SCREW TECHNIQUE; SHAFT RELIEVED TO PREVENT ENGAGEMENT BY HANDPIECE CHUCK; CONE SHAPED CONTACT AREA PROVIDES CLUTCH ACTION. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6520-00-935-9872 still in active supply?

NSN 6520-00-935-9872 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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