PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40704-3Gear,spur

The Dewey Electronics Corporation · NSN 3020-00-451-1294 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-451-1294 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-451-1294. Primary manufacturer part number: 40704-3.
Features
  • Gear,spur — FSC 3020
  • Teeth Quantity: 32
  • Tooth Form: STANDARD
  • Face Nominal Width: 0.188 INCHES IN
  • Mounting Hole Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END
  • Mounting Hole Thread Quantity Per Inch: 32 TRANSVERSELY THROUGH HUB FIRST END
  • Hub Nominal Diameter: 0.500 INCHES FIRST END IN
  • Style Designator: PROTRUDING HUB
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-451-1294, 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 19 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: Active.

Technical Specifications
ParameterValue
NSN3020-00-451-1294
Primary Part Number40704-3
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerThe Dewey Electronics Corporation
StatusACTIVE
Teeth Quantity32
Tooth FormSTANDARD
Face Nominal Width0.188 INCHES IN
Mounting Hole Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END
Mounting Hole Thread Quantity Per Inch32 TRANSVERSELY THROUGH HUB FIRST END
Hub Nominal Diameter0.500 INCHES FIRST END IN
Style DesignatorPROTRUDING HUB
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Precision ClassificationQUALITY NUMBER 12
Surface TreatmentPASSIVATE OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Body StylePLAIN, SOLID
Nominal Overall Length0.437 INCHES IN
Material Document and ClassificationQQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Pressure Angle20.0000 DEGREES
MaterialSTEEL COMP 303 OVERALL
Mounting Hole Type and Quantity1 THREADED TRANSVERSELY THROUGH HUB FIRST END
Attachment MethodMOUNTING HOLE
Pitch Diameter0.6660 INCHES MINIMUM AND 0.6667 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-045-3296MS35338-43 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4820-01-176-046340704-3 INTERCHANGEABLE
Seat,valve
Rogerson Aircraft Equipment Group
Cross-Reference Index
Part NumberManufacturer
40704-3 PRIMARY The Dewey Electronics Corporation (USA)
Related Parts
5310-00-045-3296INTERCHANGEABLE
WASHER,LOCK
MS35338-43
4820-01-176-0463INTERCHANGEABLE
SEAT,VALVE
40704-3

Frequently Asked Questions

What is NSN 3020-00-451-1294?

NSN 3020-00-451-1294 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 3020-00-451-1294?

NSN 3020-00-451-1294 has 1 cross-referenced part number: 40704-3 (The Dewey Electronics Corporation).

What NSN replaces 3020-00-451-1294?

There are 2 known substitutes for 3020-00-451-1294: 5310-00-045-3296, 4820-01-176-0463. Verify interchangeability with system specifications before substitution.

What are the specifications of 40704-3?

Key specifications for 40704-3: Teeth Quantity: 32; Tooth Form: STANDARD; Face Nominal Width: 0.188 INCHES IN; Mounting Hole Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com