PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40704-8Gear,spur

The Dewey Electronics Corporation · NSN 3020-00-451-1296 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-451-1296 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-451-1296. Primary manufacturer part number: 40704-8.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Attachment Method: MOUNTING HOLE
  • Hub Nominal Diameter: 0.375 INCHES FIRST END IN
  • Mounting Hole Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END
  • Material Document and Classification: QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Mounting Hole Thread Quantity Per Inch: 40 TRANSVERSELY THROUGH HUB FIRST END
  • Pitch Diameter: 1.1243 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-451-1296, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is The Dewey Electronics Corporation. Government technical data includes 20 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-451-1296
Primary Part Number40704-8
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerThe Dewey Electronics Corporation
StatusACTIVE
Body StylePLAIN, SOLID
Attachment MethodMOUNTING HOLE
Hub Nominal Diameter0.375 INCHES FIRST END IN
Mounting Hole Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END
Material Document and ClassificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Mounting Hole Thread Quantity Per Inch40 TRANSVERSELY THROUGH HUB FIRST END
Pitch Diameter1.1243 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
Mounting Hole Type and Quantity1 THREADED TRANSVERSELY THROUGH HUB FIRST END
Nominal Overall Length0.343 INCHES IN
Style DesignatorPROTRUDING HUB
Pressure Angle20.0000 DEGREES
MaterialALUMINUM ALLOY 2024 OVERALL
Surface TreatmentANODIZE OVERALL
Tooth FormSTANDARD
Surface Treatment Document and ClassificationMIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Precision ClassificationQUALITY NUMBER 12
Nominal Distance Between Body Face and Protruding Hub End0.218 INCHES FIRST END IN
Face Nominal Width0.125 INCHES IN
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Teeth Quantity72
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5985-00-323-1317407048 INTERCHANGEABLE
Coupler,directional
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
Cross-Reference Index
Part NumberManufacturer
40704-8 PRIMARY The Dewey Electronics Corporation (USA)
Related Parts
5985-00-323-1317INTERCHANGEABLE
COUPLER,DIRECTIONAL
407048

Frequently Asked Questions

What is NSN 3020-00-451-1296?

NSN 3020-00-451-1296 is a Gear,spur, manufactured by The Dewey Electronics Corporation, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-451-1296?

NSN 3020-00-451-1296 has 1 cross-referenced part number: 40704-8 (The Dewey Electronics Corporation).

What NSN replaces 3020-00-451-1296?

There is 1 known substitute for 3020-00-451-1296: 5985-00-323-1317. Verify interchangeability with system specifications before substitution.

What are the specifications of 40704-8?

Key specifications for 40704-8: Body Style: PLAIN, SOLID; Attachment Method: MOUNTING HOLE; Hub Nominal Diameter: 0.375 INCHES FIRST END IN; Mounting Hole Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END. 20 total characteristics are documented in the Federal Logistics Information System.

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