PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

251-1204-7Disk Drive Unit

Gch Systems Inc · NSN 7025-01-383-5940 · FSC 7025 · No Item Name Available
Verified by PartsTable
NSN 7025-01-383-5940 — this item is cataloged by the U.S. Government under National Stock Number 7025-01-383-5940. Primary manufacturer part number: 251-1204-7.
Features
  • Disk Drive Unit — FSC 7025
  • Access Time in Milliseconds: 15.0
  • Data Storage Capacity: 130.40 MEGABYTES
  • Transfer Rate in Megabytes Per Second: 6.0
  • Drive Quantity: 1
  • Interleave Rate Ratio: 1.0
  • Sector Type and Quantity: 42 HARD
  • Drive Size: 3.50
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Disk Drive Unit, cataloged under National Stock Number 7025-01-383-5940, is classified within Federal Supply Class 7025 (No Item Name Available) of the General Purpose ADP Equipment group. The primary manufacturer of record is Gch Systems Inc. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN7025-01-383-5940
Primary Part Number251-1204-7
Item NameDisk Drive Unit
FSC / FSG7025 / 70 — No Item Name Available
ManufacturerGch Systems Inc
StatusACTIVE
Access Time in Milliseconds15.0
Data Storage Capacity130.40 MEGABYTES
Transfer Rate in Megabytes Per Second6.0
Drive Quantity1
Interleave Rate Ratio1.0
Sector Type and Quantity42 HARD
Drive Size3.50
Tracks Per Inch1800.0
Drive HeightHALF
Design TypeHARD DISK
Head Type and Quantity2 READ AND 2 WRITE
Unpackaged Unit Weight1.200 POUNDS LBS
Unit DesignINTERNAL
Operating Temp Range+5.0 TO 50.0 CELSIUS DEGC
Power SourceEXTERNAL
Voltage in Volts and Current Type12.0 DC AND 5.0 DC
Access Time in Milliseconds15.0
Data Storage Capacity130.40 MEGABYTES
Transfer Rate in Megabytes Per Second6.0
Drive Quantity1
Interleave Rate Ratio1.0
Sector Type and Quantity42 HARD
Drive Size3.50
Tracks Per Inch1800.0
Drive HeightHALF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight1.6000 lbs
Cube0.0741 cu ft
Verified Substitutes 1
5985-01-021-1353 INTERCHANGEABLE
Mixer,crystal,waveguide
Cross-Reference Index
Part NumberManufacturer
251-1204-7 Gch Systems Inc (USA)
ST3145A Seagate Technology (USA)
7120A Maxtor Corp (USA)
Related Parts
5985-01-021-1353INTERCHANGEABLE
MIXER,CRYSTAL,WAVEGUIDE

Frequently Asked Questions

What is NSN 7025-01-383-5940?

NSN 7025-01-383-5940 is a Disk Drive Unit, manufactured by Gch Systems Inc, classified under FSC 7025 (No Item Name Available). Status: active.

What are the part numbers for NSN 7025-01-383-5940?

NSN 7025-01-383-5940 has 3 cross-referenced part numbers: 251-1204-7 (Gch Systems Inc), ST3145A (Seagate Technology), 7120A (Maxtor Corp).

What NSN replaces 7025-01-383-5940?

There is 1 known substitute for 7025-01-383-5940: 5985-01-021-1353. Verify interchangeability with system specifications before substitution.

What are the specifications of 251-1204-7?

Key specifications for 251-1204-7: Access Time in Milliseconds: 15.0; Data Storage Capacity: 130.40 MEGABYTES; Transfer Rate in Megabytes Per Second: 6.0; Drive Quantity: 1. 30 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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