PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S20K320Arrester,electrical Surge

Siemens Corp · NSN 5920-01-654-3147 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-654-3147 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-654-3147. Primary manufacturer part number: S20K320.
Features
  • Arrester,electrical Surge — FSC 5920
  • 3 verified cross-references
  • Primary manufacturer: Siemens Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Arrester,electrical Surge, cataloged under National Stock Number 5920-01-654-3147, is classified within Federal Supply Class 5920 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Siemens Corp. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5920-01-654-3147
Primary Part NumberS20K320
Item NameArrester,electrical Surge
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerSiemens Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5905-01-228-8782138C834H02 INTERCHANGEABLE
Resistor,voltage Sensitive
Northrop Grumman Support Services Corp
5905-01-415-3674343-322-007 INTERCHANGEABLE
Resistor,thermal
L3harris Interstate Electronics Corporation
Cross-Reference Index
Part NumberManufacturer
S20K320 PRIMARY Siemens Corp (USA)
29-2733504-7 General Dynamics Mission Systems, Inc. (USA)
V320LA40B PRIMARY L3harris Technologies, Inc (USA)
Related Parts
5905-01-228-8782INTERCHANGEABLE
RESISTOR,VOLTAGE SENSITIVE
138C834H02
5905-01-415-3674INTERCHANGEABLE
RESISTOR,THERMAL
343-322-007

Frequently Asked Questions

What is NSN 5920-01-654-3147?

NSN 5920-01-654-3147 is a Arrester,electrical Surge, manufactured by Siemens Corp, classified under FSC 5920 (No Item Name Available). Status: active.

What are the part numbers for NSN 5920-01-654-3147?

NSN 5920-01-654-3147 has 3 cross-referenced part numbers: S20K320 (Siemens Corp), 29-2733504-7 (General Dynamics Mission Systems, Inc.), V320LA40B (L3harris Technologies, Inc).

What NSN replaces 5920-01-654-3147?

There are 2 known substitutes for 5920-01-654-3147: 5905-01-228-8782, 5905-01-415-3674. Verify interchangeability with system specifications before substitution.

What are the specifications of S20K320?

Key specifications for S20K320: Overall Length: 1.100 INCHES NOMINAL IN; End Item Identification: 5805-01-644-5875; Part Name Assigned by Controlling Agency: ARRESTOR, ELECTRIC; Special Features: CONTINUOUS VOLTAGE RATING 420V DC V. 6 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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