PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TP-520Disk Drive Unit

U S Dept of Transportation Federal Aviation Administration · NSN 7025-01-551-2391 · FSC 7025 · No Item Name Available
Verified by PartsTable
NSN 7025-01-551-2391 — this item is cataloged by the U.S. Government under National Stock Number 7025-01-551-2391. Primary manufacturer part number: TP-520.
Features
  • Disk Drive Unit — FSC 7025
  • 1 verified cross-reference
  • Primary manufacturer: U S Dept of Transportation Federal Aviation Administration
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Disk Drive Unit, cataloged under National Stock Number 7025-01-551-2391, is classified within Federal Supply Class 7025 (No Item Name Available) of the General Purpose ADP Equipment group. The primary manufacturer of record is U S Dept of Transportation Federal Aviation Administration. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN7025-01-551-2391
Primary Part NumberTP-520
Item NameDisk Drive Unit
FSC / FSG7025 / 70 — No Item Name Available
ManufacturerU S Dept of Transportation Federal Aviation Administration
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeG
Verified Substitutes 1
2910-00-927-7229323960R91 INTERCHANGEABLE
Filter Element,fluid
Dressta North America Ltd
Cross-Reference Index
Part NumberManufacturer
TP-520 PRIMARY U S Dept of Transportation Federal Aviation Administration (USA)
Related Parts
2910-00-927-7229INTERCHANGEABLE
FILTER ELEMENT,FLUID
323960R91

Frequently Asked Questions

What is NSN 7025-01-551-2391?

NSN 7025-01-551-2391 is a Disk Drive Unit, manufactured by U S Dept of Transportation Federal Aviation Administration, classified under FSC 7025 (No Item Name Available). Status: active.

What are the part numbers for NSN 7025-01-551-2391?

NSN 7025-01-551-2391 has 1 cross-referenced part number: TP-520 (U S Dept of Transportation Federal Aviation Administration).

What NSN replaces 7025-01-551-2391?

There is 1 known substitute for 7025-01-551-2391: 2910-00-927-7229. Verify interchangeability with system specifications before substitution.

What are the specifications of TP-520?

Key specifications for TP-520: End Item Identification: AIRPORT SURVEILLANCE RADAR EQUIPMENT 3 (ASDE3); Part Name Assigned by Controlling Agency: FLOPPY DRIVE ADAPTER ASSEMBLY; End Item Identification: AIRPORT SURVEILLANCE RADAR EQUIPMENT 3 (ASDE3); Part Name Assigned by Controlling Agency: FLOPPY DRIVE ADAPTER ASSEMBLY. 4 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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