PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FR00135Axle Assembly,front

Sioux Corporation Dba Sioux Corp · NSN 4940-01-257-0644 · FSC 4940 · No Item Name Available
Verified by PartsTable
NSN 4940-01-257-0644 — this item is cataloged by the U.S. Government under National Stock Number 4940-01-257-0644. Primary manufacturer part number: FR00135.
Features
  • Axle Assembly,front — FSC 4940
  • 2 verified cross-references
  • Primary manufacturer: Sioux Corporation Dba Sioux Corp
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Axle Assembly,front, cataloged under National Stock Number 4940-01-257-0644, is classified within Federal Supply Class 4940 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Sioux Corporation Dba Sioux Corp. This item has 2 commercial cross-references 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.

Catalog Facts
Item NameAxle Assembly,front
FSC / FSG4940 — No Item Name Available (FSG 49)
ManufacturersSioux Corporation Dba Sioux Corp (CAGE 15579)
Technical Specifications
ParameterValue
NSN4940-01-257-0644
Primary Part NumberFR00135
Item NameAxle Assembly,front
FSC / FSG4940 / 49 — No Item Name Available
ManufacturerSioux Corporation Dba Sioux Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6625-00-133-4631PL1293U INTERCHANGEABLE
Plug-in Unit,electrical-Electron
Joint Electronics Type Designation System
4720-00-640-67833209077 INTERCHANGEABLE
Hose,air Duct
Arrowhead Products Corp
6625-01-247-04751A2 INTERCHANGEABLE
Plug-in Unit,electrical-Electron
Tektronix, Inc.
6130-01-513-39111A2 INTERCHANGEABLE
Power Supply
U S Dept of Transportation Federal Aviation Administration
Cross-Reference Index
Part NumberManufacturer
FR00135 PRIMARY Sioux Corporation Dba Sioux Corp (USA)
1A2 Sioux Corporation Dba Sioux Corp (USA)
Related Parts
6625-00-133-4631INTERCHANGEABLE
PLUG-IN UNIT,ELECTRICAL-ELECTRON
PL1293U
4720-00-640-6783INTERCHANGEABLE
HOSE,AIR DUCT
3209077
6625-01-247-0475INTERCHANGEABLE
PLUG-IN UNIT,ELECTRICAL-ELECTRON
1A2
6130-01-513-3911INTERCHANGEABLE
POWER SUPPLY
1A2

Frequently Asked Questions

What is NSN 4940-01-257-0644?

NSN 4940-01-257-0644 is a Axle Assembly,front, manufactured by Sioux Corporation Dba Sioux Corp, classified under FSC 4940 (No Item Name Available). Status: active.

What are the part numbers for NSN 4940-01-257-0644?

NSN 4940-01-257-0644 has 2 cross-referenced part numbers: FR00135 (Sioux Corporation Dba Sioux Corp), 1A2 (Sioux Corporation Dba Sioux Corp).

What NSN replaces 4940-01-257-0644?

There are 4 known substitutes for 4940-01-257-0644: 6625-00-133-4631, 4720-00-640-6783, 6625-01-247-0475 and 1 more. Verify interchangeability with system specifications before substitution.

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