PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31107Gear,spur

Belfort Instrument Company · NSN 3020-01-413-8920 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-413-8920 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-413-8920. Primary manufacturer part number: 31107.
Features
  • Gear,spur — FSC 3020
  • Style Designator: PROTRUDING HUB
  • Surface Treatment: PASSIVATE OVERALL
  • First Step Nominal Length: 0.295 INCHES FIRST END IN
  • End Nominal Length: 0.060 INCHES FIRST END IN
  • Face Nominal Width: 0.135 INCHES IN
  • Pitch Diameter: 0.7795 INCHES NOMINAL IN
  • Material: STEEL COMP 303 OVERALL
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 3020-01-413-8920, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Belfort Instrument Company. Government technical data includes 17 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-413-8920
Primary Part Number31107
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerBelfort Instrument Company
StatusACTIVE
Style DesignatorPROTRUDING HUB
Surface TreatmentPASSIVATE OVERALL
First Step Nominal Length0.295 INCHES FIRST END IN
End Nominal Length0.060 INCHES FIRST END IN
Face Nominal Width0.135 INCHES IN
Pitch Diameter0.7795 INCHES NOMINAL IN
MaterialSTEEL COMP 303 OVERALL
Nominal Outside Diameter0.841 INCHES IN
Material Document and ClassificationQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Hub Style Designator1 STEP FIRST END
Bore StylePLAIN BOTH ENDS
End Nominal Diameter0.153 INCHES FIRST END IN
Nominal Distance Between Body Face and Protruding Hub End0.355 INCHES FIRST END IN
Pressure Angle20.0000 DEGREES
Body StylePLAIN, SOLID
Precision ClassificationQUALITY NUMBER 8
Teeth Quantity25
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5945-00-211-0573 INTERCHANGEABLE
Relay,electromagnetic
5136-00-237-82635136-00-237-8263 INTERCHANGEABLE
Die,thread Cutting
General Services Administration Federal Supply Service
6680-00-526-65783110-7 INTERCHANGEABLE
Gage,liquid Quantity,float Type
Rochester Sensors, Llc
5330-00-759-055031107 INTERCHANGEABLE
Gasket,spiral Wound
Flowserve Inc
6610-00-866-845031107 INTERCHANGEABLE
Case Assy
Aerosonic Llc
4320-01-443-3092 INTERCHANGEABLE
Impeller,pump,centrifugal
5340-01-646-992331107 INTERCHANGEABLE
Bracket,mounting
Campbell Scientific Inc
5340-01-662-726631107 INTERCHANGEABLE
Adapter,tie Down
Saginaw Products Corporation Dba Cignys
Cross-Reference Index
Part NumberManufacturer
31107 PRIMARY Belfort Instrument Company (USA)
Related Parts
5945-00-211-0573INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5136-00-237-8263INTERCHANGEABLE
DIE,THREAD CUTTING
5136-00-237-8263
6680-00-526-6578INTERCHANGEABLE
GAGE,LIQUID QUANTITY,FLOAT TYPE
3110-7
5330-00-759-0550INTERCHANGEABLE
GASKET,SPIRAL WOUND
31107
6610-00-866-8450INTERCHANGEABLE
CASE ASSY
31107
4320-01-443-3092INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
5340-01-646-9923INTERCHANGEABLE
BRACKET,MOUNTING
31107
5340-01-662-7266INTERCHANGEABLE
ADAPTER,TIE DOWN
31107

Frequently Asked Questions

What is NSN 3020-01-413-8920?

NSN 3020-01-413-8920 is a Gear,spur, manufactured by Belfort Instrument Company, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-413-8920?

NSN 3020-01-413-8920 has 1 cross-referenced part number: 31107 (Belfort Instrument Company).

What NSN replaces 3020-01-413-8920?

There are 8 known substitutes for 3020-01-413-8920: 5945-00-211-0573, 5136-00-237-8263, 6680-00-526-6578 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31107?

Key specifications for 31107: Style Designator: PROTRUDING HUB; Special Features: 0.063 IN. PIN HOLE DIA LOCATED ON FIRST STEP OF HUB IN; Surface Treatment: PASSIVATE OVERALL; First Step Nominal Length: 0.295 INCHES FIRST END IN. 18 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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