PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27629Gear,spur

Curtiss-Wright Controls, Inc. Div Actuation Division · NSN 3020-00-640-2697 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-640-2697 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-640-2697. Primary manufacturer part number: 27629.
Features
  • Gear,spur — FSC 3020
  • Style Designator: CONE SHAPE BODY, PROTRUDING HUB, RECESSED HUB
  • Mounting Hole Type and Quantity: 6 PLAIN AXIALLY THROUGH HUB FIRST END
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM HUB
  • Hub Nominal Diameter: 2.875 INCHES SECOND END IN
  • Material: STEEL COMP E9310 OVERALL
  • Nominal Outside Diameter: 4.960 INCHES IN
  • Bore Nominal Diameter: 1.813 INCHES BOTH ENDS IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp E9310 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-640-2697, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 26 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-640-2697
Primary Part Number27629
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCurtiss-Wright Controls, Inc. Div Actuation Division
StatusCANCELLED
Style DesignatorCONE SHAPE BODY, PROTRUDING HUB, RECESSED HUB
Mounting Hole Type and Quantity6 PLAIN AXIALLY THROUGH HUB FIRST END
Hardness Rating32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM HUB
Hub Nominal Diameter2.875 INCHES SECOND END IN
MaterialSTEEL COMP E9310 OVERALL
Nominal Outside Diameter4.960 INCHES IN
Bore Nominal Diameter1.813 INCHES BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.468 INCHES SECOND END IN
Pressure Angle20.0000 DEGREES
Tooth FormSTANDARD
Body StyleWEBBED, OFFSET, SOLID
Pitch Diameter4.8000 INCHES NOMINAL IN
Attachment MethodMOUNTING HOLE
Bore StyleW/COUNTERBORE BOTH ENDS
Teeth Quantity48
Hub Style DesignatorPLAIN BOTH ENDS
Mounting Hole Nominal Diameter0.257 INCHES AXIALLY THROUGH HUB FIRST END IN
Counterbore Nominal Depth0.125 INCHES FIRST END IN
Counterbore Nominal Diameter2.750 INCHES FIRST END IN
Face Nominal Width0.313 INCHES IN
Hub Nominal Diameter2.875 INCHES FIRST END IN
Hardness Rating60.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM TEETH
Material Document and ClassificationAMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nominal Overall Length0.781 INCHES IN
Nominal Distance Between Body Face and Recessed Hub End0.531 INCHES FIRST END IN
Bolt Hole Circle Nominal Diameter2.310 INCHES AXIALLY THROUGH HUB FIRST END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
2530-01-145-939773597 INTERCHANGEABLE
Piston,brake Housin
Jay-Em Aerospace Corporation
5995-01-150-198927629 INTERCHANGEABLE
Cable Assembly,radio Frequency
Viant Collegeville Llc
Cross-Reference Index
Part NumberManufacturer
27629 PRIMARY Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
Related Parts
2530-01-145-9397INTERCHANGEABLE
PISTON,BRAKE HOUSIN
73597
5995-01-150-1989INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
27629

Frequently Asked Questions

What is NSN 3020-00-640-2697?

NSN 3020-00-640-2697 is a Gear,spur, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-640-2697?

NSN 3020-00-640-2697 has 1 cross-referenced part number: 27629 (Curtiss-Wright Controls, Inc. Div Actuation Division).

What NSN replaces 3020-00-640-2697?

There are 2 known substitutes for 3020-00-640-2697: 2530-01-145-9397, 5995-01-150-1989. Verify interchangeability with system specifications before substitution.

What are the specifications of 27629?

Key specifications for 27629: Style Designator: CONE SHAPE BODY, PROTRUDING HUB, RECESSED HUB; Mounting Hole Type and Quantity: 6 PLAIN AXIALLY THROUGH HUB FIRST END; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM HUB; Hub Nominal Diameter: 2.875 INCHES SECOND END IN. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-640-2697 still in active supply?

NSN 3020-00-640-2697 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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