PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

252-11Gear Cluster

Dukes Aerospace, Inc. · NSN 3020-00-796-8180 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-796-8180 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-796-8180. Primary manufacturer part number: 252-11.
Features
  • Gear Cluster — FSC 3020
  • Bore Nominal Diameter: 0.126 INCHES BOTH ENDS IN
  • Bore Style: PLAIN BOTH ENDS
  • Hub Nominal Length: 0.048 INCHES BETWEEN FIRST AND SECOND GEAR IN
  • Design Type: SPUR FIRST GEAR
  • Construction: SOLID
  • Nominal Outside Diameter: 0.406 INCHES SECOND GEAR IN
  • Nominal Outside Diameter: 0.969 INCHES FIRST GEAR IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4620 Overall construction
General Description

The Gear Cluster, cataloged under National Stock Number 3020-00-796-8180, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Dukes Aerospace, Inc.. Government technical data includes 12 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-796-8180
Primary Part Number252-11
Item NameGear Cluster
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerDukes Aerospace, Inc.
StatusACTIVE
Bore Nominal Diameter0.126 INCHES BOTH ENDS IN
Bore StylePLAIN BOTH ENDS
Hub Nominal Length0.048 INCHES BETWEEN FIRST AND SECOND GEAR IN
Design TypeSPUR FIRST GEAR
ConstructionSOLID
Nominal Outside Diameter0.406 INCHES SECOND GEAR IN
Nominal Outside Diameter0.969 INCHES FIRST GEAR IN
Material Document and ClassificationMIL-S-7493,COMP 4620 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 4620 OVERALL
Hardness Rating58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL
Design TypeSPUR SECOND GEAR
Nominal Overall Length0.275 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5210-00-174-3663212J SD INTERCHANGEABLE
Indicator,dial
B. C. Ames Incorporated
6140-00-842-043325211 INTERCHANGEABLE
Battery,storage
Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
5975-01-373-767925211 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
9150-01-439-085925211 INTERCHANGEABLE
Lubricating Oil,weapons
Mil-Comm Products Co, Inc Div Mil-Comm
5340-01-538-3064 INTERCHANGEABLE
Cover,access
1005-01-541-897525211 INTERCHANGEABLE
Buttstock,subassembly
Charles Reed Knight Jr Dba Knight's Armament Company
5340-01-583-749825209 INTERCHANGEABLE
Cap,protective,dust and Moisture
Parker Hannifin Corporation Div Hydraulic Systems Division
5120-01-598-3580 INTERCHANGEABLE
Wrench,box and Open End,combinat
5995-01-627-1660MXT1001MBK INTERCHANGEABLE
Cable Assembly,special Purpose,e
Startech.com Usa Llp
5120-01-676-0693213521 INTERCHANGEABLE
Fork,sledge Attachment
Slide Sledge Llc
Cross-Reference Index
Part NumberManufacturer
252-11 PRIMARY Dukes Aerospace, Inc. (USA)
Related Parts
5210-00-174-3663INTERCHANGEABLE
INDICATOR,DIAL
212J SD
6140-00-842-0433INTERCHANGEABLE
BATTERY,STORAGE
25211
5975-01-373-7679INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
25211
9150-01-439-0859INTERCHANGEABLE
LUBRICATING OIL,WEAPONS
25211
5340-01-538-3064INTERCHANGEABLE
COVER,ACCESS
1005-01-541-8975INTERCHANGEABLE
BUTTSTOCK,SUBASSEMBLY
25211
5340-01-583-7498INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
25209
5120-01-598-3580INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5995-01-627-1660INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
MXT1001MBK
5120-01-676-0693INTERCHANGEABLE
FORK,SLEDGE ATTACHMENT
213521

Frequently Asked Questions

What is NSN 3020-00-796-8180?

NSN 3020-00-796-8180 is a Gear Cluster, manufactured by Dukes Aerospace, Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-796-8180?

NSN 3020-00-796-8180 has 1 cross-referenced part number: 252-11 (Dukes Aerospace, Inc.).

What NSN replaces 3020-00-796-8180?

There are 10 known substitutes for 3020-00-796-8180: 5210-00-174-3663, 6140-00-842-0433, 5975-01-373-7679 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 252-11?

Key specifications for 252-11: Bore Nominal Diameter: 0.126 INCHES BOTH ENDS IN; Bore Style: PLAIN BOTH ENDS; Hub Nominal Length: 0.048 INCHES BETWEEN FIRST AND SECOND GEAR IN; Design Type: SPUR FIRST GEAR. 13 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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