PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14539ADXGear,spur

Airdale Express Llc Div Airdale Express · NSN 3020-00-474-2684 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-474-2684 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-474-2684. Primary manufacturer part number: 14539ADX.
Features
  • Gear,spur — FSC 3020
  • Nominal Distance From Bore Center to Keyway Bottom: 0.747 INCHES BOTH ENDS IN
  • Bore Nominal Diameter: 1.249 INCHES BOTH ENDS IN
  • Nominal Overall Length: 1.615 INCHES IN
  • Tooth Form: STANDARD
  • Pressure Angle: 20.0000 DEGREES
  • Hub Nominal Diameter: 2.000 INCHES FIRST END IN
  • Bore Style: W/ KEYWAY BOTH ENDS
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-474-2684, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Airdale Express Llc Div Airdale Express. Government technical data includes 17 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-474-2684
Primary Part Number14539ADX
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAirdale Express Llc Div Airdale Express
StatusACTIVE
Nominal Distance From Bore Center to Keyway Bottom0.747 INCHES BOTH ENDS IN
Bore Nominal Diameter1.249 INCHES BOTH ENDS IN
Nominal Overall Length1.615 INCHES IN
Tooth FormSTANDARD
Pressure Angle20.0000 DEGREES
Hub Nominal Diameter2.000 INCHES FIRST END IN
Bore StyleW/ KEYWAY BOTH ENDS
Supplementary FeaturesBR0426AAB
Nominal Distance Between Body Face and Protruding Hub End0.620 INCHES FIRST END IN
Nominal Outside Diameter12.246 INCHES IN
Style DesignatorONE PROTRUDING HUB, ONE FLUSH HUB
Keyway Nominal Width0.252 INCHES BOTH ENDS IN
Hub Style DesignatorPLAIN FIRST END
Face Nominal Width1.000 INCHES IN
Teeth Quantity98
Pitch Diameter12.2500 INCHES NOMINAL IN
Body StyleSPOKED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-112-65662X7020 INTERCHANGEABLE
Roller,bearing
Napco International Llc Dba Napco International Inc
5360-00-292-11293182991 PC 68 INTERCHANGEABLE
Spring,helical,compression
Naval Sea Systems Command
5985-01-032-322814539 INTERCHANGEABLE
Cable Assy,connecti
Dayton-Granger, Inc.
5915-01-049-4172 INTERCHANGEABLE
Filter,band Pass
4730-01-238-6442 INTERCHANGEABLE
Elbow,pipe to Tube
5340-01-306-090814539 INTERCHANGEABLE
Strap,webbing
Breeze-Eastern Llc
6525-01-600-845214539 INTERCHANGEABLE
Service Key,x-Ray Apparatus
Ziehm Imaging, Inc.
5315-01-722-311414539-1 INTERCHANGEABLE
Pin,straight,headless
Gatr Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
14539ADX Airdale Express Llc Div Airdale Express (USA)
14539 Acco-Babcock Inc Hoist and Crane Div (USA)
Related Parts
3110-00-112-6566INTERCHANGEABLE
ROLLER,BEARING
2X7020
5360-00-292-1129INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3182991 PC 68
5985-01-032-3228INTERCHANGEABLE
CABLE ASSY,CONNECTI
14539
5915-01-049-4172INTERCHANGEABLE
FILTER,BAND PASS
4730-01-238-6442INTERCHANGEABLE
ELBOW,PIPE TO TUBE
5340-01-306-0908INTERCHANGEABLE
STRAP,WEBBING
14539
6525-01-600-8452INTERCHANGEABLE
SERVICE KEY,X-RAY APPARATUS
14539
5315-01-722-3114INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
14539-1

Frequently Asked Questions

What is NSN 3020-00-474-2684?

NSN 3020-00-474-2684 is a Gear,spur, manufactured by Airdale Express Llc Div Airdale Express, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-474-2684?

NSN 3020-00-474-2684 has 2 cross-referenced part numbers: 14539ADX (Airdale Express Llc Div Airdale Express), 14539 (Acco-Babcock Inc Hoist and Crane Div).

What NSN replaces 3020-00-474-2684?

There are 8 known substitutes for 3020-00-474-2684: 3110-00-112-6566, 5360-00-292-1129, 5985-01-032-3228 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14539ADX?

Key specifications for 14539ADX: Nominal Distance From Bore Center to Keyway Bottom: 0.747 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.249 INCHES BOTH ENDS IN; Nominal Overall Length: 1.615 INCHES IN; Tooth Form: STANDARD. 17 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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