PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56148-1Disk Drive Unit

L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions · NSN 7025-01-446-4139 · FSC 7025 · No Item Name Available
Verified by PartsTable
NSN 7025-01-446-4139 — this item is cataloged by the U.S. Government under National Stock Number 7025-01-446-4139. Primary manufacturer part number: 56148-1.
Features
  • Disk Drive Unit — FSC 7025
  • 4 verified cross-references
  • Primary manufacturer: L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Disk Drive Unit, cataloged under National Stock Number 7025-01-446-4139, is classified within Federal Supply Class 7025 (No Item Name Available) of the General Purpose ADP Equipment group. The primary manufacturer of record is L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions. This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN7025-01-446-4139
Primary Part Number56148-1
Item NameDisk Drive Unit
FSC / FSG7025 / 70 — No Item Name Available
ManufacturerL3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor7035-01-560-3110 (5610-8)
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJZ
Weight0.6850 lbs
Cube0.0405 cu ft
Verified Substitutes 12
7035-01-560-31105610-8 SUCCESSOR
Server,automatic Data Processing
Trimillennium Corporation Dba Spectrum Target Technologies
1005-00-420-5107 INTERCHANGEABLE
Pin,hammer Stirrup
2540-00-426-9781 INTERCHANGEABLE
Bracket,drawbar Fra
5310-00-523-2121 INTERCHANGEABLE
Nut,plain,hexagon
3020-00-534-3010 INTERCHANGEABLE
Gear,worm
1270-00-671-892952108 INTERCHANGEABLE
Waveguide Assy
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
4730-01-418-6489 INTERCHANGEABLE
Restrictor,fluid Flow
5120-01-431-713010112 INTERCHANGEABLE
Key Set,socket Head Screw
Eklind Tool Co
3040-01-432-595352041-1002-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-433-816552041-1003-1 INTERCHANGEABLE
Body,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
56148-1 L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions (USA)
56708 L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions (USA)
56108 L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions (USA)
52108 L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions (USA)
Related Parts
SUCCESSOR 7035-01-560-3110 Server,automatic Data Processing · 5610-8
1005-00-420-5107INTERCHANGEABLE
PIN,HAMMER STIRRUP
2540-00-426-9781INTERCHANGEABLE
BRACKET,DRAWBAR FRA
5310-00-523-2121INTERCHANGEABLE
NUT,PLAIN,HEXAGON
3020-00-534-3010INTERCHANGEABLE
GEAR,WORM
1270-00-671-8929INTERCHANGEABLE
WAVEGUIDE ASSY
52108
4730-01-418-6489INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
5120-01-431-7130INTERCHANGEABLE
KEY SET,SOCKET HEAD SCREW
10112
3040-01-432-5953INTERCHANGEABLE
SHAFT,SHOULDERED
52041-1002-1
4810-01-433-8165INTERCHANGEABLE
BODY,VALVE
52041-1003-1
4730-01-443-1807INTERCHANGEABLE
RESTRICTOR UNIT,FLUID FLOW
52108-808-1
4730-01-444-1085INTERCHANGEABLE
RESTRICTOR UNIT,FLUID FLOW
52108-807-1

Frequently Asked Questions

What is NSN 7025-01-446-4139?

NSN 7025-01-446-4139 is a Disk Drive Unit, manufactured by L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions, classified under FSC 7025 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 7025-01-446-4139?

NSN 7025-01-446-4139 has 4 cross-referenced part numbers: 56148-1 (L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions), 56708 (L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions), 56108 (L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions), 52108 (L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions).

What NSN replaces 7025-01-446-4139?

There are 12 known substitutes for 7025-01-446-4139: 7035-01-560-3110, 1005-00-420-5107, 2540-00-426-9781 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 56148-1?

Key specifications for 56148-1: End Item Identification: LCU; End Item Identification: LCU. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 7025-01-446-4139 still in active supply?

NSN 7025-01-446-4139 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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