PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125001Gear,spur

Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West · NSN 3020-00-288-4943 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-288-4943 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-288-4943. Primary manufacturer part number: 125001.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Pitch Diameter: 0.7500 INCHES NOMINAL IN
  • Nominal Outside Diameter: 0.813 INCHES IN
  • Style Designator: PROTRUDING HUB
  • Backlash Designation: GRADE C
  • Material: STEEL COMP 1117 OVERALL
  • Nominal Distance Between Body Face and Protruding Hub End: 0.250 INCHES FIRST END IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 1117 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-288-4943, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West. Government technical data includes 16 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-288-4943
Primary Part Number125001
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerMcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West
StatusACTIVE
Body StylePLAIN, SOLID
Pitch Diameter0.7500 INCHES NOMINAL IN
Nominal Outside Diameter0.813 INCHES IN
Style DesignatorPROTRUDING HUB
Backlash DesignationGRADE C
MaterialSTEEL COMP 1117 OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Hub Nominal Diameter0.438 INCHES FIRST END IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1117 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Hub Style DesignatorPINNED FIRST END
Tooth FormSTANDARD
Face Nominal Width0.125 INCHES IN
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Teeth Quantity24
Pressure Angle20.0000 DEGREES
Bore StylePLAIN BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4810-00-105-725512500-1 INTERCHANGEABLE
Valve,linear,directional Control
Moog Inc
5920-00-151-4039SM-B-331778 INTERCHANGEABLE
Fuse Clip Holder
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
7035-00-188-667412-500-1 INTERCHANGEABLE
Encoder,digital
L3harris Interstate Electronics Corporation
3040-00-352-6402125001 INTERCHANGEABLE
Lever,remote Control
Fwd Seagrave Holdings Lp
5340-00-570-3786093-49831-004 INTERCHANGEABLE
Plug Assembly,sealing
Moog Inc
5305-00-638-7106125001 INTERCHANGEABLE
Screw,shoulder
Telemechanics Inc
4720-00-852-0524 INTERCHANGEABLE
Hose Assembly,nonmetallic
5910-00-872-3174125-001 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division
4720-00-931-2782125M001-4CR0234 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
5120-01-100-1287 INTERCHANGEABLE
Remover,integrated Circuit
Cross-Reference Index
Part NumberManufacturer
125001 Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West (USA)
125001 The Boeing Company Div Defense (USA)
Related Parts
4810-00-105-7255INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
12500-1
5920-00-151-4039INTERCHANGEABLE
FUSE CLIP HOLDER
SM-B-331778
7035-00-188-6674INTERCHANGEABLE
ENCODER,DIGITAL
12-500-1
3040-00-352-6402INTERCHANGEABLE
LEVER,REMOTE CONTROL
125001
5340-00-570-3786INTERCHANGEABLE
PLUG ASSEMBLY,SEALING
093-49831-004
5305-00-638-7106INTERCHANGEABLE
SCREW,SHOULDER
125001
4720-00-852-0524INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5910-00-872-3174INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
125-001
4720-00-931-2782INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
125M001-4CR0234
5120-01-100-1287INTERCHANGEABLE
REMOVER,INTEGRATED CIRCUIT
6220-01-120-7436INTERCHANGEABLE
LIGHT,INSPECTION
5340-01-228-7523INTERCHANGEABLE
CLEVIS,ROD END

Frequently Asked Questions

What is NSN 3020-00-288-4943?

NSN 3020-00-288-4943 is a Gear,spur, manufactured by Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-288-4943?

NSN 3020-00-288-4943 has 2 cross-referenced part numbers: 125001 (Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West), 125001 (The Boeing Company Div Defense).

What NSN replaces 3020-00-288-4943?

There are 12 known substitutes for 3020-00-288-4943: 4810-00-105-7255, 5920-00-151-4039, 7035-00-188-6674 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 125001?

Key specifications for 125001: Body Style: PLAIN, SOLID; Pitch Diameter: 0.7500 INCHES NOMINAL IN; Nominal Outside Diameter: 0.813 INCHES IN; Style Designator: PROTRUDING HUB. 16 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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