PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1-1ASwitch,thermostatic

Shallco, Inc · NSN 5930-00-254-0343 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-254-0343 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-254-0343. Primary manufacturer part number: S1-1A.
Features
  • Switch,thermostatic — FSC 5930
  • Contact Load Current Rating: 300.0 MILLIAMPERES RESISTIVE LOAD FIRST VOLTAGE
  • Contact Load Current Rating: 300.0 MILLIAMPERES RESISTIVE LOAD SECOND VOLTAGE
  • Contact Adjustability: ACTUATION POINT NOT ADJUSTABLE
  • Contact Voltage Rating in Volts: 110.0 AC AT SEA LEVEL FIRST VOLTAGE
  • Overall Diameter: 0.375 INCHES NOMINAL IN
  • Contact Voltage Rating in Volts: 110.0 DC AT SEA LEVEL SECOND VOLTAGE
  • Nonpile-Up Contact Arrangement: 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,thermostatic, cataloged under National Stock Number 5930-00-254-0343, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Shallco, Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-254-0343
Primary Part NumberS1-1A
Item NameSwitch,thermostatic
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerShallco, Inc
StatusACTIVE
Contact Load Current Rating300.0 MILLIAMPERES RESISTIVE LOAD FIRST VOLTAGE
Contact Load Current Rating300.0 MILLIAMPERES RESISTIVE LOAD SECOND VOLTAGE
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE
Contact Voltage Rating in Volts110.0 AC AT SEA LEVEL FIRST VOLTAGE
Overall Diameter0.375 INCHES NOMINAL IN
Contact Voltage Rating in Volts110.0 DC AT SEA LEVEL SECOND VOLTAGE
Nonpile-Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Terminal TypeWIRE LEAD
Contact Action StimulusINCREASE
Temp Sensing Element TypeINTERNAL SENSOR
Contact Stimulus Rating140.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 139.90 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5930-00-228-3007 INTERCHANGEABLE
Switch,thermostatic
5930-00-254-034240193 INTERCHANGEABLE
Switch,thermostatic
Naval Ship Systems Command
5930-00-504-6923310-129 INTERCHANGEABLE
Switch,thermostatic
Keysight Technologies Inc
5930-00-513-6075 INTERCHANGEABLE
Switch,thermostatic
Cross-Reference Index
Part NumberManufacturer
S1-1A Shallco, Inc (USA)
ES682051ISSUE4 Lucent Technologies Inc Dba Federal Marketing Group (USA)
ES682051ISSUE4 Lucent Technologies Inc Corporate Headquarters (USA)
ES682051ISSUE4 At and T Corp (USA)
ES682051ISSUE4 American Telephone and Telegraph Co (USA)
Related Parts
5930-00-228-3007INTERCHANGEABLE
SWITCH,THERMOSTATIC
5930-00-254-0342INTERCHANGEABLE
SWITCH,THERMOSTATIC
40193
5930-00-504-6923INTERCHANGEABLE
SWITCH,THERMOSTATIC
310-129
5930-00-513-6075INTERCHANGEABLE
SWITCH,THERMOSTATIC

Frequently Asked Questions

What is NSN 5930-00-254-0343?

NSN 5930-00-254-0343 is a Switch,thermostatic, manufactured by Shallco, Inc, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-254-0343?

NSN 5930-00-254-0343 has 5 cross-referenced part numbers: S1-1A (Shallco, Inc), ES682051ISSUE4 (Lucent Technologies Inc Dba Federal Marketing Group), ES682051ISSUE4 (Lucent Technologies Inc Corporate Headquarters), ES682051ISSUE4 (At and T Corp), ES682051ISSUE4 (American Telephone and Telegraph Co).

What NSN replaces 5930-00-254-0343?

There are 4 known substitutes for 5930-00-254-0343: 5930-00-228-3007, 5930-00-254-0342, 5930-00-504-6923 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S1-1A?

Key specifications for S1-1A: Contact Load Current Rating: 300.0 MILLIAMPERES RESISTIVE LOAD FIRST VOLTAGE; Contact Load Current Rating: 300.0 MILLIAMPERES RESISTIVE LOAD SECOND VOLTAGE; Contact Adjustability: ACTUATION POINT NOT ADJUSTABLE; Contact Voltage Rating in Volts: 110.0 AC AT SEA LEVEL FIRST VOLTAGE. 12 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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