PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14126Gear,spur

Scientific Atlanta Inc · NSN 3020-00-420-5445 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-420-5445 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-420-5445. Primary manufacturer part number: 14126.
Features
  • Gear,spur — FSC 3020
  • Material Document and Classification: AISI 303/SAE 30303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Hub Style Designator: SPLIT FIRST END
  • Backlash Designation: GRADE C
  • Hub Nominal Diameter: 0.311 INCHES FIRST END IN
  • Surface Treatment: PASSIVATE OVERALL
  • Bore Style: PLAIN BOTH ENDS
  • Tooth Form: STANDARD
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-420-5445, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Scientific Atlanta Inc. Government technical data includes 21 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-420-5445
Primary Part Number14126
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerScientific Atlanta Inc
StatusACTIVE
Material Document and ClassificationAISI 303/SAE 30303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Hub Style DesignatorSPLIT FIRST END
Backlash DesignationGRADE C
Hub Nominal Diameter0.311 INCHES FIRST END IN
Surface TreatmentPASSIVATE OVERALL
Bore StylePLAIN BOTH ENDS
Tooth FormSTANDARD
Precision ClassificationQUALITY NUMBER 10 OR QUALITY NUMBER 11
Clamping Surface Nominal Length0.250 INCHES FIRST END IN
MaterialSTEEL COMP 303 OVERALL
Surface Treatment Document and ClassificationMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.281 INCHES FIRST END IN
Pitch Diameter0.4688 INCHES NOMINAL IN
Nominal Outside Diameter0.499 INCHES IN
Face Nominal Width0.125 INCHES IN
Style DesignatorPROTRUDING HUB
Pressure Angle20.0000 DEGREES
Teeth Quantity30
Body StylePLAIN, SOLID
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Attachment MethodCLAMP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4920-00-118-332014-126 INTERCHANGEABLE
Joint Assembly,special Purpose
Apex Tool Group, Llc
5330-00-268-758214126 INTERCHANGEABLE
Gasket
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
3040-00-466-313814126 INTERCHANGEABLE
Pinion Assembly
Aerosonic Llc
5940-00-882-90911412-6 INTERCHANGEABLE
Terminal,lug
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
7930-01-069-702314126 INTERCHANGEABLE
Cleaning and Lubricating Compoun
Ecolab Inc
5998-01-151-510214126 INTERCHANGEABLE
Printed Circuit Board
Finnigan Corporation
6150-01-213-899914-126 INTERCHANGEABLE
Housing,electrical Rotating Equi
Motorola Automotive Electronics
5945-01-411-4987 INTERCHANGEABLE
Relay,electromagnetic
4920-01-562-695714126 INTERCHANGEABLE
Caster,rigid,aircra
Aerol Co
5330-01-730-956812799 INTERCHANGEABLE
Gasket
Cepeda Associates, Inc. Dba Cepeda Associates Inc
Cross-Reference Index
Part NumberManufacturer
14126 PRIMARY Scientific Atlanta Inc (USA)
Related Parts
4920-00-118-3320INTERCHANGEABLE
JOINT ASSEMBLY,SPECIAL PURPOSE
14-126
5330-00-268-7582INTERCHANGEABLE
GASKET
14126
3040-00-466-3138INTERCHANGEABLE
PINION ASSEMBLY
14126
5940-00-882-9091INTERCHANGEABLE
TERMINAL,LUG
1412-6
7930-01-069-7023INTERCHANGEABLE
CLEANING AND LUBRICATING COMPOUN
14126
5998-01-151-5102INTERCHANGEABLE
PRINTED CIRCUIT BOARD
14126
6150-01-213-8999INTERCHANGEABLE
HOUSING,ELECTRICAL ROTATING EQUI
14-126
5945-01-411-4987INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
4920-01-562-6957INTERCHANGEABLE
CASTER,RIGID,AIRCRA
14126
5330-01-730-9568INTERCHANGEABLE
GASKET
12799
5330-01-730-9580INTERCHANGEABLE
GASKET
13866
5330-01-730-9623INTERCHANGEABLE
GASKET
12894

Frequently Asked Questions

What is NSN 3020-00-420-5445?

NSN 3020-00-420-5445 is a Gear,spur, manufactured by Scientific Atlanta Inc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-420-5445?

NSN 3020-00-420-5445 has 1 cross-referenced part number: 14126 (Scientific Atlanta Inc).

What NSN replaces 3020-00-420-5445?

There are 12 known substitutes for 3020-00-420-5445: 4920-00-118-3320, 5330-00-268-7582, 3040-00-466-3138 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14126?

Key specifications for 14126: Material Document and Classification: AISI 303/SAE 30303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Hub Style Designator: SPLIT FIRST END; Backlash Designation: GRADE C; Hub Nominal Diameter: 0.311 INCHES FIRST END IN. 21 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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