PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DS20S-120/240-30-1Protector,series Circuit

L E a International Inc · NSN 5920-01-391-4654 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-391-4654 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-391-4654. Primary manufacturer part number: DS20S-120/240-30-1.
Features
  • Protector,series Circuit — FSC 5920
  • 4 verified cross-references
  • Primary manufacturer: L E a International Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Protector,series Circuit, cataloged under National Stock Number 5920-01-391-4654, 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 L E a International Inc. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameProtector,series Circuit
FSC / FSG5920 — No Item Name Available (FSG 59)
ManufacturersL E a International Inc (CAGE 57499); Electronic Specialists Inc (CAGE 2X249)
Technical Specifications
ParameterValue
NSN5920-01-391-4654
Primary Part NumberDS20S-120/240-30-1
Item NameProtector,series Circuit
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerL E a International Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-00-500-2704 INTERCHANGEABLE
Transformer,power
6625-01-451-19402402 01 INTERCHANGEABLE
Probe,test
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
4610-01-501-8000 INTERCHANGEABLE
Conductivity System
Cross-Reference Index
Part NumberManufacturer
DS20S-120/240-30-1 PRIMARY L E a International Inc (USA)
SELF/T-20(240)SC-L PRIMARY Electronic Specialists Inc (USA)
SE-240-20-1 L E a International Inc (USA)
240-20-1 L E a International Inc (USA)
Related Parts
5950-00-500-2704INTERCHANGEABLE
TRANSFORMER,POWER
6625-01-451-1940INTERCHANGEABLE
PROBE,TEST
2402 01
4610-01-501-8000INTERCHANGEABLE
CONDUCTIVITY SYSTEM

Frequently Asked Questions

What is NSN 5920-01-391-4654?

NSN 5920-01-391-4654 is a Protector,series Circuit, manufactured by L E a International Inc, classified under FSC 5920 (No Item Name Available). Status: active.

What are the part numbers for NSN 5920-01-391-4654?

NSN 5920-01-391-4654 has 4 cross-referenced part numbers: DS20S-120/240-30-1 (L E a International Inc), SELF/T-20(240)SC-L (Electronic Specialists Inc), SE-240-20-1 (L E a International Inc), 240-20-1 (L E a International Inc).

What NSN replaces 5920-01-391-4654?

There are 3 known substitutes for 5920-01-391-4654: 5950-00-500-2704, 6625-01-451-1940, 4610-01-501-8000. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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