PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A72165Gear,spur

Ballantyne of Omaha Inc. · NSN 3020-00-031-2488 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-031-2488 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-031-2488. Primary manufacturer part number: A72165.
Features
  • Gear,spur — FSC 3020
  • Pitch Diameter: 1.0000 INCHES NOMINAL IN
  • Body Style: PLAIN, SOLID
  • Face Nominal Width: 0.125 INCHES IN
  • Material: ALUMINUM ALLOY OVERALL
  • Nominal Outside Diameter: 1.100 INCHES IN
  • Style Designator: PROTRUDING HUBS
  • Hub Nominal Diameter: 0.375 INCHES BOTH ENDS IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-031-2488, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Ballantyne of Omaha Inc.. Government technical data includes 18 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-031-2488
Primary Part NumberA72165
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerBallantyne of Omaha Inc.
StatusACTIVE
Pitch Diameter1.0000 INCHES NOMINAL IN
Body StylePLAIN, SOLID
Face Nominal Width0.125 INCHES IN
MaterialALUMINUM ALLOY OVERALL
Nominal Outside Diameter1.100 INCHES IN
Style DesignatorPROTRUDING HUBS
Hub Nominal Diameter0.375 INCHES BOTH ENDS IN
Pressure Angle20.0000 DEGREES
Surface TreatmentANODIZE OVERALL
Bore Nominal Diameter0.186 INCHES BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.125 INCHES SECOND END IN
Hub Style DesignatorPINNED FIRST END
Surface Treatment Document and ClassificationAN-QQ-A-696 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hub Style DesignatorPLAIN SECOND END
Nominal Distance Between Body Face and Protruding Hub End0.188 INCHES FIRST END IN
Material Document and ClassificationQQ-A-354 COND T FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Bore StylePLAIN BOTH ENDS
Teeth Quantity20
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2530-00-494-9471133735R1 INTERCHANGEABLE
Piston,valve
Navistar Intl Corp Truck Br Ohio Plant
5920-01-047-22772607 INTERCHANGEABLE
Fuseholder,block
Cooper Bussmann, Llc Dba Cooper Industries
8415-01-534-246472165 INTERCHANGEABLE
Coveralls,toxicological Agents P
Lakeland Industries Inc Dba Lakeland Industries, Inc
Cross-Reference Index
Part NumberManufacturer
A72165 PRIMARY Ballantyne of Omaha Inc. (USA)
72165 Arma Div Ambac Industries Inc
Related Parts
2530-00-494-9471INTERCHANGEABLE
PISTON,VALVE
133735R1
5920-01-047-2277INTERCHANGEABLE
FUSEHOLDER,BLOCK
2607
8415-01-534-2464INTERCHANGEABLE
COVERALLS,TOXICOLOGICAL AGENTS P
72165

Frequently Asked Questions

What is NSN 3020-00-031-2488?

NSN 3020-00-031-2488 is a Gear,spur, manufactured by Ballantyne of Omaha Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-031-2488?

NSN 3020-00-031-2488 has 2 cross-referenced part numbers: A72165 (Ballantyne of Omaha Inc.), 72165 (Arma Div Ambac Industries Inc).

What NSN replaces 3020-00-031-2488?

There are 3 known substitutes for 3020-00-031-2488: 2530-00-494-9471, 5920-01-047-2277, 8415-01-534-2464. Verify interchangeability with system specifications before substitution.

What are the specifications of A72165?

Key specifications for A72165: Pitch Diameter: 1.0000 INCHES NOMINAL IN; Body Style: PLAIN, SOLID; Face Nominal Width: 0.125 INCHES IN; Material: ALUMINUM ALLOY OVERALL. 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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