PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3659894Gear,idler Shaft

Spalla Inc · NSN 2520-00-447-2687 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-447-2687 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-447-2687. Primary manufacturer part number: 3659894.
Features
  • Gear,idler Shaft — FSC 2520
  • 6 verified cross-references
  • Primary manufacturer: Spalla Inc
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,idler Shaft, cataloged under National Stock Number 2520-00-447-2687, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Spalla Inc. This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameGear,idler Shaft
FSC / FSG2520 — No Item Name Available (FSG 25)
ManufacturersSpalla Inc (CAGE 22852); General Motors Corp (CAGE 24617); General Motors Llc Dba General Motors Llc (CAGE 7X677); General Motors Corp Chevrolet Motor Div Special Products Dept (CAGE 11862)
Technical Specifications
ParameterValue
NSN2520-00-447-2687
Primary Part Number3659894
Item NameGear,idler Shaft
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerSpalla Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
2530-00-039-6892215185 INTERCHANGEABLE
Diaphragm Assy,lowp
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
Cross-Reference Index
Part NumberManufacturer
3659894 Spalla Inc (USA)
365984 General Motors Corp (USA)
3659894 General Motors Corp (USA)
3659894 General Motors Llc Dba General Motors Llc (USA)
365984 General Motors Llc Dba General Motors Llc (USA)
365984 General Motors Corp Chevrolet Motor Div Special Products Dept (USA)
Related Parts
2530-00-039-6892INTERCHANGEABLE
DIAPHRAGM ASSY,LOWP
215185

Frequently Asked Questions

What is NSN 2520-00-447-2687?

NSN 2520-00-447-2687 is a Gear,idler Shaft, manufactured by Spalla Inc, classified under FSC 2520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2520-00-447-2687?

NSN 2520-00-447-2687 has 6 cross-referenced part numbers: 3659894 (Spalla Inc), 365984 (General Motors Corp), 3659894 (General Motors Corp), 3659894 (General Motors Llc Dba General Motors Llc), 365984 (General Motors Llc Dba General Motors Llc) and 1 more.

What NSN replaces 2520-00-447-2687?

There is 1 known substitute for 2520-00-447-2687: 2530-00-039-6892. Verify interchangeability with system specifications before substitution.

Is NSN 2520-00-447-2687 still in active supply?

NSN 2520-00-447-2687 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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