PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1905APlug-in Unit,electrical-Electron

Hewlett-Packard Company Dba HP · NSN 6625-00-451-3656 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-451-3656 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-451-3656. Primary manufacturer part number: 1905A.
Features
  • Plug-in Unit,electrical-Electron — FSC 6625
  • FSC Application Data: GENERATOR PULSE,TEST,EXCEPT SPECIALLY DESIGNED
  • FSC Application Data: GENERATOR PULSE,TEST,EXCEPT SPECIALLY DESIGNED
  • 4 verified cross-references
  • Primary manufacturer: Hewlett-Packard Company Dba HP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Plug-in Unit,electrical-Electron, cataloged under National Stock Number 6625-00-451-3656, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hewlett-Packard Company Dba HP. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-451-3656
Primary Part Number1905A
Item NamePlug-in Unit,electrical-Electron
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerHewlett-Packard Company Dba HP
StatusACTIVE
FSC Application DataGENERATOR PULSE,TEST,EXCEPT SPECIALLY DESIGNED
FSC Application DataGENERATOR PULSE,TEST,EXCEPT SPECIALLY DESIGNED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeS
Unit of IssueEA
SMR CodeVS
Weight5.0000 lbs
Cube0.8333 cu ft
Verified Substitutes 3
6685-00-874-723816701820 INTERCHANGEABLE
Thermocouple,immersion
Fairbanks Morse, Llc
3120-01-006-2020 INTERCHANGEABLE
Bearing,sleeve
5985-01-522-6376 INTERCHANGEABLE
Coupler,rotary,radio Frequency
Cross-Reference Index
Part NumberManufacturer
1905A Hewlett-Packard Company Dba HP (USA)
1905A Keysight Technologies Inc (USA)
1905A Keysight Technologies, Inc. (USA)
818780 Mbda Uk Ltd (GBR)
Related Parts
6685-00-874-7238INTERCHANGEABLE
THERMOCOUPLE,IMMERSION
16701820
3120-01-006-2020INTERCHANGEABLE
BEARING,SLEEVE
5985-01-522-6376INTERCHANGEABLE
COUPLER,ROTARY,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 6625-00-451-3656?

NSN 6625-00-451-3656 is a Plug-in Unit,electrical-Electron, manufactured by Hewlett-Packard Company Dba HP, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-451-3656?

NSN 6625-00-451-3656 has 4 cross-referenced part numbers: 1905A (Hewlett-Packard Company Dba HP), 1905A (Keysight Technologies Inc), 1905A (Keysight Technologies, Inc.), 818780 (Mbda Uk Ltd).

What NSN replaces 6625-00-451-3656?

There are 3 known substitutes for 6625-00-451-3656: 6685-00-874-7238, 3120-01-006-2020, 5985-01-522-6376. Verify interchangeability with system specifications before substitution.

What are the specifications of 1905A?

Key specifications for 1905A: FSC Application Data: GENERATOR PULSE,TEST,EXCEPT SPECIALLY DESIGNED; Overall Width: 4.187 INCHES NOMINAL IN; Overall Height: 5.250 INCHES NOMINAL IN; Overall Length: 21.375 INCHES NOMINAL IN. 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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