PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M5-3-8-375Mandrel,roller Tube Expander

Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric · NSN 3456-00-640-3145 · FSC 3456 · No Item Name Available
Verified by PartsTable
NSN 3456-00-640-3145 — this item is cataloged by the U.S. Government under National Stock Number 3456-00-640-3145. Primary manufacturer part number: M5-3-8-375.
Features
  • Mandrel,roller Tube Expander — FSC 3456
  • Square Shank Length: 0.750 INCHES NOMINAL IN
  • Size Designator: 0.500 INCHES NOMINAL IN
  • Departure From Cited Document: GAS MODIFIED BY PAR. 3.3.4 MANDRELS
  • Drive Type: SQUARE
  • Hand Turning Rod: NOT INCLUDED
  • Taper Major Diameter: 0.516 INCHES NOMINAL IN
  • Operation Method: MANUAL OR POWER
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Mandrel,roller Tube Expander, cataloged under National Stock Number 3456-00-640-3145, is classified within Federal Supply Class 3456 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, 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
NSN3456-00-640-3145
Primary Part NumberM5-3-8-375
Item NameMandrel,roller Tube Expander
FSC / FSG3456 / 34 — No Item Name Available
ManufacturerGe Steam Power Inc Dba Ge Steam Power, Inc Div General Electric
StatusACTIVE
Square Shank Length0.750 INCHES NOMINAL IN
Size Designator0.500 INCHES NOMINAL IN
Departure From Cited DocumentGAS MODIFIED BY PAR. 3.3.4 MANDRELS
Drive TypeSQUARE
Hand Turning RodNOT INCLUDED
Taper Major Diameter0.516 INCHES NOMINAL IN
Operation MethodMANUAL OR POWER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5950-00-187-2673A465 INTERCHANGEABLE
Transformer,power
Dongan Electric Manufacturing Company
5950-00-249-3239 INTERCHANGEABLE
Transformer,power
3120-01-148-190999132478 INTERCHANGEABLE
Bearing,sleeve
Alfa Laval Inc
6685-01-668-4001HDA 4386-A-0500-000-F1 INTERCHANGEABLE
Transmitter,pressure
Hydac Technology Corp
Cross-Reference Index
Part NumberManufacturer
M5-3-8-375 Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric (USA)
32478 Thomas C. Wilson, Inc. Dba Thomas C Wilson (USA)
1385500 DESIGNATION M5 3/8 0.375 Naval Ship Systems Command (USA)
1723-654-11 ITEM 2.68C Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
MIL-E-17624 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
F1385500DESIGNATI0NM5 3-8-0-375 Naval Ship Systems Command (USA)
E168-130 ITEM 114 Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric (USA)
M5 3-8-375 Babcock & Wilcox Co (USA)
M5-3-8-375 Elliott Company Div Jeannette (USA)
3-8-375DIMA Naval Ship Systems Command (USA)
Related Parts
5950-00-187-2673INTERCHANGEABLE
TRANSFORMER,POWER
A465
5950-00-249-3239INTERCHANGEABLE
TRANSFORMER,POWER
3120-01-148-1909INTERCHANGEABLE
BEARING,SLEEVE
99132478
6685-01-668-4001INTERCHANGEABLE
TRANSMITTER,PRESSURE
HDA 4386-A-0500-000-F1

Frequently Asked Questions

What is NSN 3456-00-640-3145?

NSN 3456-00-640-3145 is a Mandrel,roller Tube Expander, manufactured by Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric, classified under FSC 3456 (No Item Name Available). Status: active.

What are the part numbers for NSN 3456-00-640-3145?

NSN 3456-00-640-3145 has 10 cross-referenced part numbers: M5-3-8-375 (Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric), 32478 (Thomas C. Wilson, Inc. Dba Thomas C Wilson), 1385500 DESIGNATION M5 3/8 0.375 (Naval Ship Systems Command), 1723-654-11 ITEM 2.68C (Amec Foster Wheeler North America Corp. Dba Foster Wheeler), MIL-E-17624 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 5 more.

What NSN replaces 3456-00-640-3145?

There are 4 known substitutes for 3456-00-640-3145: 5950-00-187-2673, 5950-00-249-3239, 3120-01-148-1909 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M5-3-8-375?

Key specifications for M5-3-8-375: Square Shank Length: 0.750 INCHES NOMINAL IN; Size Designator: 0.500 INCHES NOMINAL IN; Departure From Cited Document: GAS MODIFIED BY PAR. 3.3.4 MANDRELS; Drive Type: SQUARE. 8 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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