PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1028590Gear,spur

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 3020-00-027-4732 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-027-4732 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-027-4732. Primary manufacturer part number: 1028590.
Features
  • Gear,spur — FSC 3020
  • Pitch Diameter: 0.4157 INCHES MINIMUM AND 0.4167 INCHES MAXIMUM IN
  • Teeth Quantity: 20
  • Surface Treatment: ANODIZE OVERALL
  • Bore Nominal Diameter: 0.187 INCHES BOTH ENDS IN
  • Face Nominal Width: 0.095 INCHES IN
  • Material: ALUMINUM ALLOY 6061 OVERALL
  • End Nominal Length: 0.245 INCHES FIRST END IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy 6061 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-027-4732, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 20 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-027-4732
Primary Part Number1028590
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Pitch Diameter0.4157 INCHES MINIMUM AND 0.4167 INCHES MAXIMUM IN
Teeth Quantity20
Surface TreatmentANODIZE OVERALL
Bore Nominal Diameter0.187 INCHES BOTH ENDS IN
Face Nominal Width0.095 INCHES IN
MaterialALUMINUM ALLOY 6061 OVERALL
End Nominal Length0.245 INCHES FIRST END IN
First Step Nominal Length0.035 INCHES FIRST END IN
First Step Nominal Diameter0.375 INCHES FIRST END IN
Nominal Distance Between Body Face and Protruding Hub End0.280 INCHES FIRST END IN
Body StylePLAIN, SOLID
Bore StylePLAIN BOTH ENDS
Style DesignatorPROTRUDING HUB
Nominal Outside Diameter0.457 INCHES IN
Tooth FormSTANDARD
Pressure Angle20.0000 DEGREES
End Nominal Diameter0.250 INCHES FIRST END IN
Material Document and ClassificationQQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Hub Style Designator1 STEP FIRST END
Precision ClassificationQUALITY NUMBER 10 OR QUALITY NUMBER 11
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
1660-00-831-564641509 INTERCHANGEABLE
Cover Ass,panel,tem
Honeywell International, Inc Div Aerospace-Tucson
5945-00-967-3616 INTERCHANGEABLE
Solenoid,electrical
5930-01-034-4925SM-A-717657-1 INTERCHANGEABLE
Switch,flow
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5962-01-222-875041509 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
5360-01-243-2697 INTERCHANGEABLE
Spring
3020-01-479-471641509 INTERCHANGEABLE
Gear Rack
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
1028590 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
41-509 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
1660-00-831-5646INTERCHANGEABLE
COVER ASS,PANEL,TEM
41509
5945-00-967-3616INTERCHANGEABLE
SOLENOID,ELECTRICAL
5930-01-034-4925INTERCHANGEABLE
SWITCH,FLOW
SM-A-717657-1
5962-01-222-8750INTERCHANGEABLE
MICROCIRCUIT,MEMORY
41509
5360-01-243-2697INTERCHANGEABLE
SPRING
3020-01-479-4716INTERCHANGEABLE
GEAR RACK
41509

Frequently Asked Questions

What is NSN 3020-00-027-4732?

NSN 3020-00-027-4732 is a Gear,spur, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-027-4732?

NSN 3020-00-027-4732 has 2 cross-referenced part numbers: 1028590 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 41-509 (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 3020-00-027-4732?

There are 6 known substitutes for 3020-00-027-4732: 1660-00-831-5646, 5945-00-967-3616, 5930-01-034-4925 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1028590?

Key specifications for 1028590: Pitch Diameter: 0.4157 INCHES MINIMUM AND 0.4167 INCHES MAXIMUM IN; Teeth Quantity: 20; Surface Treatment: ANODIZE OVERALL; Bore Nominal Diameter: 0.187 INCHES BOTH ENDS IN. 20 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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