PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40307Gear Cluster

Midwest Gear & Tool, Inc. · NSN 3020-00-097-8244 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-097-8244 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-097-8244. Primary manufacturer part number: 40307.
Features
  • Gear Cluster — FSC 3020
  • Hub Nominal Diameter: 2.250 INCHES BETWEEN FIRST AND SECOND GEAR IN
  • Hub Nominal Diameter: 2.8125 INCHES FIRST END IN
  • Construction: SOLID
  • Bore Style: PLAIN BOTH ENDS
  • Hub Style Designator: PLAIN BETWEEN FIRST AND SECOND GEAR
  • Bore Nominal Diameter: 1.500 INCHES BOTH ENDS IN
  • Nominal Outside Diameter: 3.1429 INCHES SECOND GEAR IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear Cluster, cataloged under National Stock Number 3020-00-097-8244, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Midwest Gear & Tool, Inc.. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-097-8244
Primary Part Number40307
Item NameGear Cluster
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerMidwest Gear & Tool, Inc.
StatusACTIVE
Hub Nominal Diameter2.250 INCHES BETWEEN FIRST AND SECOND GEAR IN
Hub Nominal Diameter2.8125 INCHES FIRST END IN
ConstructionSOLID
Bore StylePLAIN BOTH ENDS
Hub Style DesignatorPLAIN BETWEEN FIRST AND SECOND GEAR
Bore Nominal Diameter1.500 INCHES BOTH ENDS IN
Nominal Outside Diameter3.1429 INCHES SECOND GEAR IN
Attachment MethodMOUNTING HOLE
Hub Nominal Length0.500 INCHES BETWEEN FIRST AND SECOND GEAR IN
Design TypeSPUR FIRST GEAR
Design TypeSPUR SECOND GEAR
Nominal Outside Diameter4.8750 INCHES FIRST GEAR IN
Hub Nominal Length0.063 INCHES FIRST END IN
Hub Style DesignatorPLAIN FIRST END
Nominal Overall Length3.562 INCHES IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3020-00-231-913402261-0280-18 INTERCHANGEABLE
Gear Cluster
Asrc Federal Facilities Logistics, Llc
3040-00-295-07504500-271-M INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
5365-00-531-842311145-52 INTERCHANGEABLE
Shim
Cummins Inc.
5330-00-573-922440307 INTERCHANGEABLE
Gasket
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
3417-01-023-840733860 INTERCHANGEABLE
Cutter,engraving
Gravotech, Inc. Dba Gravotech Inc
6680-01-075-3728 INTERCHANGEABLE
Tachometer,mechanical,fixed Moun
5133-01-095-6716 INTERCHANGEABLE
Drill,twist
5985-01-157-55035189460 INTERCHANGEABLE
Coupling,waveguide
Raytheon Company
6110-01-194-734440307 INTERCHANGEABLE
Protector,thermal-Overload,elect
Silver King Refrigeration Inc.
6105-01-261-4971 INTERCHANGEABLE
Motor,alternating Current
Cross-Reference Index
Part NumberManufacturer
40307 PRIMARY Midwest Gear & Tool, Inc. (USA)
40307 Western Mfg Co (USA)
Related Parts
3020-00-231-9134INTERCHANGEABLE
GEAR CLUSTER
02261-0280-18
3040-00-295-0750INTERCHANGEABLE
CONNECTING LINK,RIGID
4500-271-M
5365-00-531-8423INTERCHANGEABLE
SHIM
11145-52
5330-00-573-9224INTERCHANGEABLE
GASKET
40307
3417-01-023-8407INTERCHANGEABLE
CUTTER,ENGRAVING
33860
6680-01-075-3728INTERCHANGEABLE
TACHOMETER,MECHANICAL,FIXED MOUN
5133-01-095-6716INTERCHANGEABLE
DRILL,TWIST
5985-01-157-5503INTERCHANGEABLE
COUPLING,WAVEGUIDE
5189460
6110-01-194-7344INTERCHANGEABLE
PROTECTOR,THERMAL-OVERLOAD,ELECT
40307
6105-01-261-4971INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
5310-01-564-3318INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
12759-80020
6530-01-588-3248INTERCHANGEABLE
PAD,ARMBOARD

Frequently Asked Questions

What is NSN 3020-00-097-8244?

NSN 3020-00-097-8244 is a Gear Cluster, manufactured by Midwest Gear & Tool, Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-097-8244?

NSN 3020-00-097-8244 has 2 cross-referenced part numbers: 40307 (Midwest Gear & Tool, Inc.), 40307 (Western Mfg Co).

What NSN replaces 3020-00-097-8244?

There are 12 known substitutes for 3020-00-097-8244: 3020-00-231-9134, 3040-00-295-0750, 5365-00-531-8423 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40307?

Key specifications for 40307: Hub Nominal Diameter: 2.250 INCHES BETWEEN FIRST AND SECOND GEAR IN; Hub Nominal Diameter: 2.8125 INCHES FIRST END IN; Construction: SOLID; Bore Style: PLAIN BOTH ENDS. 16 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