PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

331827Gear,spur

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 3020-00-532-0449 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-532-0449 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-532-0449. Primary manufacturer part number: 331827.
Features
  • Gear,spur — FSC 3020
  • Mounting Hole Nominal Diameter: 0.187 INCHES TRANSVERSELY THROUGH HUB FIRST END IN
  • Bore Nominal Diameter: 0.435 INCHES BOTH ENDS IN
  • Body Recess Nominal Depth: 0.220 INCHES SECOND END IN
  • Tooth Form: STANDARD
  • Hub Nominal Diameter: 0.6227 INCHES FIRST END IN
  • Material Document and Classification: AMS6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-532-0449, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-532-0449
Primary Part Number331827
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
Mounting Hole Nominal Diameter0.187 INCHES TRANSVERSELY THROUGH HUB FIRST END IN
Bore Nominal Diameter0.435 INCHES BOTH ENDS IN
Body Recess Nominal Depth0.220 INCHES SECOND END IN
Tooth FormSTANDARD
Hub Nominal Diameter0.6227 INCHES FIRST END IN
Material Document and ClassificationAMS6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.390 INCHES FIRST END IN
Teeth Quantity7
Pitch Diameter0.8100 INCHES MINIMUM AND 0.8200 INCHES MAXIMUM IN
Body StylePLAIN, SOLID
Hub Style DesignatorPLAIN FIRST END
Spline Quantity12 BOTH ENDS
Pressure Angle20.0000 DEGREES
Style DesignatorPROTRUDING HUB, RECESSED BODY
Mounting Hole Type and Quantity1 PLAIN TRANSVERSELY THROUGH HUB FIRST END
Bore StyleINVOLUTE SPLINE BOTH ENDS
Nominal Outside Diameter1.500 INCHES IN
Face Nominal Width0.597 INCHES IN
Attachment MethodMOUNTING HOLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5133-00-988-5668 INTERCHANGEABLE
Drill,twist
Cross-Reference Index
Part NumberManufacturer
331827 Aero Gear Incorporated (USA)
331826 Bmt Aerospace Usa, Inc. (USA)
331827 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5133-00-988-5668INTERCHANGEABLE
DRILL,TWIST

Frequently Asked Questions

What is NSN 3020-00-532-0449?

NSN 3020-00-532-0449 is a Gear,spur, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-532-0449?

NSN 3020-00-532-0449 has 3 cross-referenced part numbers: 331827 (Aero Gear Incorporated), 331826 (Bmt Aerospace Usa, Inc.), 331827 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 3020-00-532-0449?

There is 1 known substitute for 3020-00-532-0449: 5133-00-988-5668. Verify interchangeability with system specifications before substitution.

What are the specifications of 331827?

Key specifications for 331827: Mounting Hole Nominal Diameter: 0.187 INCHES TRANSVERSELY THROUGH HUB FIRST END IN; Special Features: 0.451-0.455 INCH OUTSIDE DIAMETER,0.177-0.197 INCH INSIDE DIAMETER PLUG INSTALLED IN HUB END OF BORE; COUNTERBORE LOCATED SECOND END,DIAMETER 0.625 INCHES NOMINAL,DEPTH 0.230 INCHES NOMINAL IN; Bore Nominal Diameter: 0.435 INCHES BOTH ENDS IN; Body Recess Nominal Depth: 0.220 INCHES SECOND END IN. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-532-0449 still in active supply?

NSN 3020-00-532-0449 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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