PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

209878Gear,spur

Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix · NSN 3020-00-995-5254 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-995-5254 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-995-5254. Primary manufacturer part number: 209878.
Features
  • Gear,spur — FSC 3020
  • Nominal Distance Between Body Face and Protruding Hub End: 1.545 INCHES SECOND END IN
  • Surface Treatment Document and Classification: AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Bore Nominal Diameter: 0.750 INCHES FIRST END IN
  • Bore Style: INVOLUTE SPLINE SECOND END
  • Pressure Angle: 20.0000 DEGREES
  • First Step Nominal Length: 0.690 INCHES SECOND END IN
  • Spline Quantity: 12 SECOND END
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Uns K24065 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-995-5254, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix. Government technical data includes 25 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-995-5254
Primary Part Number209878
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
StatusCANCELLED
Nominal Distance Between Body Face and Protruding Hub End1.545 INCHES SECOND END IN
Surface Treatment Document and ClassificationAMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Bore Nominal Diameter0.750 INCHES FIRST END IN
Bore StyleINVOLUTE SPLINE SECOND END
Pressure Angle20.0000 DEGREES
First Step Nominal Length0.690 INCHES SECOND END IN
Spline Quantity12 SECOND END
Tooth FormSTANDARD
Body StyleWEBBED, SOLID
Pitch Diameter2.2381 INCHES NOMINAL IN
Teeth Quantity36
MaterialSTEEL UNS K24065 OVERALL
Hub Style Designator1 STEP SECOND END
Hardness Rating91.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 94.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
Surface TreatmentOXIDE OVERALL
Nominal Outside Diameter2.355 INCHES IN
Bore Nominal Depth0.600 INCHES FIRST END IN
Face Nominal Width0.390 INCHES IN
Spline Pitch Diameter0.6000 INCHES NOMINAL SECOND END IN
Material Document and ClassificationAMS 6471 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Bore StylePARTIAL FIRST END
Style DesignatorPROTRUDING HUB
End Nominal Diameter0.940 INCHES SECOND END IN
First Step Nominal Diameter0.984 INCHES SECOND END IN
End Nominal Length0.855 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5355-01-466-8533209878 INTERCHANGEABLE
Knob
Eaton Corporation Dba Eaton Inoac
Cross-Reference Index
Part NumberManufacturer
209878 PRIMARY Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
Related Parts
5355-01-466-8533INTERCHANGEABLE
KNOB
209878

Frequently Asked Questions

What is NSN 3020-00-995-5254?

NSN 3020-00-995-5254 is a Gear,spur, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-995-5254?

NSN 3020-00-995-5254 has 1 cross-referenced part number: 209878 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix).

What NSN replaces 3020-00-995-5254?

There is 1 known substitute for 3020-00-995-5254: 5355-01-466-8533. Verify interchangeability with system specifications before substitution.

What are the specifications of 209878?

Key specifications for 209878: Nominal Distance Between Body Face and Protruding Hub End: 1.545 INCHES SECOND END IN; Surface Treatment Document and Classification: AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Bore Nominal Diameter: 0.750 INCHES FIRST END IN; Bore Style: INVOLUTE SPLINE SECOND END. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-995-5254 still in active supply?

NSN 3020-00-995-5254 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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