PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

127903LASwitching Unit,power Transfer

Electro Switch Corp. Dba Electro Switch Corp · NSN 6110-00-109-5604 · FSC 6110 · No Item Name Available
Verified by PartsTable
NSN 6110-00-109-5604 — this item is cataloged by the U.S. Government under National Stock Number 6110-00-109-5604. Primary manufacturer part number: 127903LA.
Features
  • Switching Unit,power Transfer — FSC 6110
  • Enclosure Feature: FULLY ENCLOSED
  • Current Rating in Amps: 200.0
  • Switch Position Quantity: 4
  • Switch Off Position: NOT INCLUDED
  • Manual Operation Facility: NOT PROVIDED
  • Voltage in Volts: 460.0
  • Current Type: AC
Applications
  • Electrical power distribution
  • Generator and power systems
  • Industrial motor installations
General Description

The Switching Unit,power Transfer, cataloged under National Stock Number 6110-00-109-5604, is classified within Federal Supply Class 6110 (No Item Name Available) of the Electric Wire, Power, and Distribution Equipment group. The primary manufacturer of record is Electro Switch Corp. Dba Electro Switch Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN6110-00-109-5604
Primary Part Number127903LA
Item NameSwitching Unit,power Transfer
FSC / FSG6110 / 61 — No Item Name Available
ManufacturerElectro Switch Corp. Dba Electro Switch Corp
StatusACTIVE
Enclosure FeatureFULLY ENCLOSED
Current Rating in Amps200.0
Switch Position Quantity4
Switch Off PositionNOT INCLUDED
Manual Operation FacilityNOT PROVIDED
Voltage in Volts460.0
Current TypeAC
Overall Diameter6.750 INCHES NOMINAL IN
Switch Pole Quantity3
Mounting ConfigurationFOUR 0.525 IN. DIA THRU HOLES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
6240-00-242-621838079-0 INTERCHANGEABLE
Lamp,incandescent
Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company
5940-00-351-723010-204-4 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
4920-01-296-163593041 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
Cross-Reference Index
Part NumberManufacturer
127903LA PRIMARY Electro Switch Corp. Dba Electro Switch Corp (USA)
90-4173 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
90-4173 Eaton Corp Opns & Technical Center (USA)
93041 Electro Switch Corp. Dba Electro Switch Corp (USA)
Related Parts
6240-00-242-6218INTERCHANGEABLE
LAMP,INCANDESCENT
38079-0
5940-00-351-7230INTERCHANGEABLE
TERMINAL,STUD
10-204-4
4920-01-296-1635INTERCHANGEABLE
TEST PROGRAM SET
93041

Frequently Asked Questions

What is NSN 6110-00-109-5604?

NSN 6110-00-109-5604 is a Switching Unit,power Transfer, manufactured by Electro Switch Corp. Dba Electro Switch Corp, classified under FSC 6110 (No Item Name Available). Status: active.

What are the part numbers for NSN 6110-00-109-5604?

NSN 6110-00-109-5604 has 4 cross-referenced part numbers: 127903LA (Electro Switch Corp. Dba Electro Switch Corp), 90-4173 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc), 90-4173 (Eaton Corp Opns & Technical Center), 93041 (Electro Switch Corp. Dba Electro Switch Corp).

What NSN replaces 6110-00-109-5604?

There are 3 known substitutes for 6110-00-109-5604: 6240-00-242-6218, 5940-00-351-7230, 4920-01-296-1635. Verify interchangeability with system specifications before substitution.

What are the specifications of 127903LA?

Key specifications for 127903LA: Enclosure Feature: FULLY ENCLOSED; Current Rating in Amps: 200.0; Switch Position Quantity: 4; Switch Off Position: NOT INCLUDED. 11 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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