PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51538Gear,spur

Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging · NSN 3020-00-825-1870 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-825-1870 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-825-1870. Primary manufacturer part number: 51538.
Features
  • Gear,spur — FSC 3020
  • Bore Nominal Diameter: 0.314 INCHES BOTH ENDS IN
  • Material: STEEL COMP 4620 OVERALL
  • Pressure Angle: 20.0000 DEGREES
  • Body Style: PLAIN, SOLID
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Bore Style: PLAIN BOTH ENDS
  • Nominal Overall Length: 0.156 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4620 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-825-1870, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging. Government technical data includes 17 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-825-1870
Primary Part Number51538
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerSafran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
StatusACTIVE
Bore Nominal Diameter0.314 INCHES BOTH ENDS IN
MaterialSTEEL COMP 4620 OVERALL
Pressure Angle20.0000 DEGREES
Body StylePLAIN, SOLID
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Bore StylePLAIN BOTH ENDS
Nominal Overall Length0.156 INCHES IN
Face Nominal Width0.094 INCHES IN
Nominal Outside Diameter0.781 INCHES IN
Style DesignatorPROTRUDING HUB
Nominal Distance Between Body Face and Protruding Hub End0.062 INCHES FIRST END IN
Hub Nominal Diameter0.700 INCHES FIRST END IN
Hub Style DesignatorPLAIN FIRST END
Tooth FormSTANDARD
Hardness Rating25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
Pitch Diameter0.7500 INCHES NOMINAL IN
Teeth Quantity48
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5340-00-372-6289 INTERCHANGEABLE
Latch,rim
1650-00-510-28197502410 INTERCHANGEABLE
Filter Body,fluid
Pti Technologies Inc.
4730-00-881-1161SAE J530 6-6 130138B INTERCHANGEABLE
Coupling,pipe
Sae International Dba Sae International
5315-00-904-0287 INTERCHANGEABLE
Pin,quick Release
Cross-Reference Index
Part NumberManufacturer
51538 PRIMARY Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging (USA)
Related Parts
5340-00-372-6289INTERCHANGEABLE
LATCH,RIM
1650-00-510-2819INTERCHANGEABLE
FILTER BODY,FLUID
7502410
4730-00-881-1161INTERCHANGEABLE
COUPLING,PIPE
SAE J530 6-6 130138B
5315-00-904-0287INTERCHANGEABLE
PIN,QUICK RELEASE

Frequently Asked Questions

What is NSN 3020-00-825-1870?

NSN 3020-00-825-1870 is a Gear,spur, manufactured by Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-825-1870?

NSN 3020-00-825-1870 has 1 cross-referenced part number: 51538 (Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging).

What NSN replaces 3020-00-825-1870?

There are 4 known substitutes for 3020-00-825-1870: 5340-00-372-6289, 1650-00-510-2819, 4730-00-881-1161 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51538?

Key specifications for 51538: Bore Nominal Diameter: 0.314 INCHES BOTH ENDS IN; Material: STEEL COMP 4620 OVERALL; Pressure Angle: 20.0000 DEGREES; Body Style: PLAIN, SOLID. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com