PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S742Test Set,thermostatic Switch

Projects Unlimited Inc · NSN 6625-00-041-1190 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-041-1190 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-041-1190. Primary manufacturer part number: S742.
Features
  • Test Set,thermostatic Switch — FSC 6625
  • Width: 10.000 INCHES NOMINAL IN
  • Height: 12.000 INCHES NOMINAL IN
  • Functional Description: USED DURING CALIBRATION OF THERMOMETERS, TEMPERATURE SENSORS, RTDS AND THERMOCOUPLES
  • Frequency Rating: 60.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED
  • Depth: 4.000 INCHES NOMINAL IN
  • AC Voltage Rating: 115.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED
  • Enclosure Feature: SINGLE ITEM W/HOUSING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Test Set,thermostatic Switch, cataloged under National Stock Number 6625-00-041-1190, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Projects Unlimited Inc. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-041-1190
Primary Part NumberS742
Item NameTest Set,thermostatic Switch
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerProjects Unlimited Inc
StatusCANCELLED
Width10.000 INCHES NOMINAL IN
Height12.000 INCHES NOMINAL IN
Functional DescriptionUSED DURING CALIBRATION OF THERMOMETERS, TEMPERATURE SENSORS, RTDS AND THERMOCOUPLES
Frequency Rating60.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Depth4.000 INCHES NOMINAL IN
AC Voltage Rating115.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Enclosure FeatureSINGLE ITEM W/HOUSING
Electrical Power Source RelationshipOPERATING
Test Type for Which DesignedTESTS THERMAL SWITCHES
PhaseSINGLE
Functional ClassificationAA8.18
Width10.000 INCHES NOMINAL IN
Height12.000 INCHES NOMINAL IN
Functional DescriptionUSED DURING CALIBRATION OF THERMOMETERS, TEMPERATURE SENSORS, RTDS AND THERMOCOUPLES
Frequency Rating60.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Depth4.000 INCHES NOMINAL IN
AC Voltage Rating115.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Enclosure FeatureSINGLE ITEM W/HOUSING
Electrical Power Source RelationshipOPERATING
Test Type for Which DesignedTESTS THERMAL SWITCHES
PhaseSINGLE
Functional ClassificationAA8.18
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeU
Unit of IssueEA
SMR CodeVU
Weight33.1000 lbs
Cube3.0090 cu ft
Verified Substitutes 4
No Item Name Available
5331-00-194-3729118220 INTERCHANGEABLE
O-Ring
Dresser Industries Inc Leroi Div
1650-00-769-5867S-742 INTERCHANGEABLE
Piston,hydraulic Accumulator
Parker Hannifin Corporation Div Hydraulic Systems Division
5360-01-549-5218S-742 INTERCHANGEABLE
Spring,helical,compression
Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp.
Cross-Reference Index
Part NumberManufacturer
S742 Projects Unlimited Inc (USA)
T7456AANDTYPEX1A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
53B63 Ram Meter Inc (USA)
Related Parts
6625-00-858-2141SUCCESSOR
NO ITEM NAME AVAILABLE
5331-00-194-3729INTERCHANGEABLE
O-RING
118220
1650-00-769-5867INTERCHANGEABLE
PISTON,HYDRAULIC ACCUMULATOR
S-742
5360-01-549-5218INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
S-742

Frequently Asked Questions

What is NSN 6625-00-041-1190?

NSN 6625-00-041-1190 is a Test Set,thermostatic Switch, manufactured by Projects Unlimited Inc, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-041-1190?

NSN 6625-00-041-1190 has 3 cross-referenced part numbers: S742 (Projects Unlimited Inc), T7456AANDTYPEX1A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 53B63 (Ram Meter Inc).

What NSN replaces 6625-00-041-1190?

There are 4 known substitutes for 6625-00-041-1190: 6625-00-858-2141, 5331-00-194-3729, 1650-00-769-5867 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S742?

Key specifications for S742: Width: 10.000 INCHES NOMINAL IN; Height: 12.000 INCHES NOMINAL IN; Functional Description: USED DURING CALIBRATION OF THERMOMETERS, TEMPERATURE SENSORS, RTDS AND THERMOCOUPLES; Frequency Rating: 60.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-041-1190 still in active supply?

NSN 6625-00-041-1190 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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