PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MP73-2500S45Gear,spur

Cae Usa Inc. · NSN 3020-00-440-0697 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-440-0697 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-440-0697. Primary manufacturer part number: MP73-2500S45.
Features
  • Gear,spur — FSC 3020
  • Surface Treatment: PASSIVATE OVERALL
  • Nominal Overall Length: 0.344 INCHES IN
  • Pressure Angle: 20.0000 DEGREES
  • Mounting Hole Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END
  • Material Document and Classification: MIL-S-7720,COMP 303S MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Body Style: PLAIN, SOLID
  • Mounting Hole Type and Quantity: 1 THREADED TRANSVERSELY THROUGH HUB FIRST END
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 3020-00-440-0697, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Cae Usa Inc.. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, 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
NSN3020-00-440-0697
Primary Part NumberMP73-2500S45
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCae Usa Inc.
StatusACTIVE
Surface TreatmentPASSIVATE OVERALL
Nominal Overall Length0.344 INCHES IN
Pressure Angle20.0000 DEGREES
Mounting Hole Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END
Material Document and ClassificationMIL-S-7720,COMP 303S MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Body StylePLAIN, SOLID
Mounting Hole Type and Quantity1 THREADED TRANSVERSELY THROUGH HUB FIRST END
Face Nominal Width0.125 INCHES IN
Tooth FormSTANDARD
Nominal Distance Between Body Face and Protruding Hub End0.219 INCHES FIRST END IN
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Surface Treatment Document and ClassificationMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL COMP 303 OVERALL
Hub Nominal Diameter0.437 INCHES FIRST END IN
Pitch Diameter0.7023 INCHES NOMINAL IN
Style DesignatorPROTRUDING HUB
Mounting Hole Thread Quantity Per Inch32 TRANSVERSELY THROUGH HUB FIRST END
Attachment MethodMOUNTING HOLE
Teeth Quantity45
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5340-00-687-507757-23840-0020 INTERCHANGEABLE
Plug,protective,dust and Moistur
Elbitamerica, Inc.
6625-01-354-6390MP73 INTERCHANGEABLE
Mixer Stage,frequency
Emhiser Tele-Tech Inc
Cross-Reference Index
Part NumberManufacturer
MP73-2500S45 PRIMARY Cae Usa Inc. (USA)
MP73 Raytheon Technical Services Company (USA)
MP73-2500S45 Raytheon Technical Services Company (USA)
MP73 Cae Usa Inc. (USA)
Related Parts
5340-00-687-5077INTERCHANGEABLE
PLUG,PROTECTIVE,DUST AND MOISTUR
57-23840-0020
6625-01-354-6390INTERCHANGEABLE
MIXER STAGE,FREQUENCY
MP73

Frequently Asked Questions

What is NSN 3020-00-440-0697?

NSN 3020-00-440-0697 is a Gear,spur, manufactured by Cae Usa Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-440-0697?

NSN 3020-00-440-0697 has 4 cross-referenced part numbers: MP73-2500S45 (Cae Usa Inc.), MP73 (Raytheon Technical Services Company), MP73-2500S45 (Raytheon Technical Services Company), MP73 (Cae Usa Inc.).

What NSN replaces 3020-00-440-0697?

There are 2 known substitutes for 3020-00-440-0697: 5340-00-687-5077, 6625-01-354-6390. Verify interchangeability with system specifications before substitution.

What are the specifications of MP73-2500S45?

Key specifications for MP73-2500S45: Surface Treatment: PASSIVATE OVERALL; Nominal Overall Length: 0.344 INCHES IN; Pressure Angle: 20.0000 DEGREES; 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