PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103374Gear Cluster

Astronautics Corporation of America · NSN 3020-00-115-2109 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-115-2109 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-115-2109. Primary manufacturer part number: 103374.
Features
  • Gear Cluster — FSC 3020
  • Hub Nominal Diameter: 0.468 INCHES BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE IN
  • Bore Nominal Diameter: 0.3751 INCHES BOTH ENDSUNABLE TO DECODE IN
  • Hub Nominal Length: 0.633 INCHES FIRST ENDUNABLE TO DECODE IN
  • Design Type: SPUR FIRST GEARUNABLE TO DECODE
  • Counterbore Nominal Diameter: 0.4250 INCHES FIRST ENDUNABLE TO DECODE IN
  • Surface Treatment: PASSIVATE OVERALLUNABLE TO DECODE
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303 Overallunable to Decode construction
General Description

The Gear Cluster, cataloged under National Stock Number 3020-00-115-2109, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Astronautics Corporation of America. Government technical data includes 23 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-115-2109
Primary Part Number103374
Item NameGear Cluster
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAstronautics Corporation of America
StatusACTIVE
Hub Nominal Diameter0.468 INCHES BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE IN
Bore Nominal Diameter0.3751 INCHES BOTH ENDSUNABLE TO DECODE IN
Hub Nominal Length0.633 INCHES FIRST ENDUNABLE TO DECODE IN
Design TypeSPUR FIRST GEARUNABLE TO DECODE
Counterbore Nominal Diameter0.4250 INCHES FIRST ENDUNABLE TO DECODE IN
Surface TreatmentPASSIVATE OVERALLUNABLE TO DECODE
Surface TreatmentPASSIVATE OVERALL
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
ConstructionSOLID
Nominal Overall Length0.883 INCHES IN
Counterbore Nominal Depth0.025 INCHES FIRST ENDUNABLE TO DECODE IN
Hub Nominal Diameter0.5312 INCHES FIRST ENDUNABLE TO DECODE IN
Bore StyleW/COUNTERBORE FIRST ENDUNABLE TO DECODE
MaterialSTEEL COMP 303 OVERALLUNABLE TO DECODE
Hub Style DesignatorPLAIN BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE
Design TypeSPUR SECOND GEARUNABLE TO DECODE
Material Document and ClassificationMIL-S-7720,COMP 303S MIL SPEC SINGLE MATERIAL RESPONSE OVERALLUNABLE TO DECODE
Nominal Outside Diameter0.5410 INCHES SECOND GEARUNABLE TO DECODE IN
Hub Nominal Length0.080 INCHES BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE IN
Surface Treatment Document and ClassificationUNABLE TO DECODEQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hub Style DesignatorPLAIN FIRST ENDUNABLE TO DECODE
Nominal Outside Diameter2.1160 INCHES FIRST GEARUNABLE TO DECODE IN
Bore StylePLAIN SECOND ENDUNABLE TO DECODE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5315-00-013-7171115X33R INTERCHANGEABLE
Pin,cotter
Abm Equipment, Llc
5315-00-816-1794 INTERCHANGEABLE
Pin,cotter
5315-01-589-3011103374 INTERCHANGEABLE
Pin,lock
Nd Defense Llc
6130-01-647-6441103374 INTERCHANGEABLE
Power Supply
Systel Inc
6020-01-732-2934103374-3 INTERCHANGEABLE
Cable Assembly,fiber Optic
L3 Technologies, Inc. Div L3 Keo
Cross-Reference Index
Part NumberManufacturer
103374 PRIMARY Astronautics Corporation of America (USA)
Related Parts
5315-00-013-7171INTERCHANGEABLE
PIN,COTTER
115X33R
5315-00-816-1794INTERCHANGEABLE
PIN,COTTER
5315-01-589-3011INTERCHANGEABLE
PIN,LOCK
103374
6130-01-647-6441INTERCHANGEABLE
POWER SUPPLY
103374
6020-01-732-2934INTERCHANGEABLE
CABLE ASSEMBLY,FIBER OPTIC
103374-3

Frequently Asked Questions

What is NSN 3020-00-115-2109?

NSN 3020-00-115-2109 is a Gear Cluster, manufactured by Astronautics Corporation of America, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-115-2109?

NSN 3020-00-115-2109 has 1 cross-referenced part number: 103374 (Astronautics Corporation of America).

What NSN replaces 3020-00-115-2109?

There are 5 known substitutes for 3020-00-115-2109: 5315-00-013-7171, 5315-00-816-1794, 5315-01-589-3011 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 103374?

Key specifications for 103374: Hub Nominal Diameter: 0.468 INCHES BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE IN; Bore Nominal Diameter: 0.3751 INCHES BOTH ENDSUNABLE TO DECODE IN; Hub Nominal Length: 0.633 INCHES FIRST ENDUNABLE TO DECODE IN; Design Type: SPUR FIRST GEARUNABLE TO DECODE. 23 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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