PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

137ASwitch,thermostatic

Duke Mfg Co · NSN 5930-00-001-3178 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-001-3178 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-001-3178. Primary manufacturer part number: 137A.
Features
  • Switch,thermostatic — FSC 5930
  • Bulb Length: 7.562 INCHES NOMINAL IN
  • Bulb Diameter: 0.250 INCHES NOMINAL IN
  • Contact Action Stimulus: INCREASE
  • Contact Adjustment Type: EXTERNAL ACTUATION POINT SHAFT
  • Contact Load Current Rating: 25.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
  • Capillary Tube Length: 24.000 INCHES NOMINAL IN
  • Temp Sensing Element Type: CAPILLARY TUBE-BULB
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,thermostatic, cataloged under National Stock Number 5930-00-001-3178, 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 Duke Mfg Co. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-001-3178
Primary Part Number137A
Item NameSwitch,thermostatic
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerDuke Mfg Co
StatusACTIVE
Bulb Length7.562 INCHES NOMINAL IN
Bulb Diameter0.250 INCHES NOMINAL IN
Contact Action StimulusINCREASE
Contact Adjustment TypeEXTERNAL ACTUATION POINT SHAFT
Contact Load Current Rating25.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
Capillary Tube Length24.000 INCHES NOMINAL IN
Temp Sensing Element TypeCAPILLARY TUBE-BULB
Mounting MethodBRACKET(S)
Contact Voltage Rating in Volts250.0 AC AT SEA LEVEL SINGLE VOLTAGE
Contact AdjustabilityACTUATION POINT ADJUSTABLE
Mounting Facility PatternTWO POSITION IN-LINE
Distance Between Mounting Facility Centers1.750 INCHES NOMINAL IN
Terminal TypeQUICK DISCONNECT, MALE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5985-00-032-6427208-1 INTERCHANGEABLE
Coupler,transmission Line
Technlogy for Cmmncations Intl
5910-00-186-929076S2606 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Photo-Sonics, Inc. Dba Photo-Sonics Inc Div Photo-Sonics
5310-00-224-0488 INTERCHANGEABLE
Nut,plain,assembled Washer
5355-00-359-0405137A INTERCHANGEABLE
Knob
Orscheln Products Llc
4410-00-377-9959137A INTERCHANGEABLE
Orifice Plate
Bethlehem Corporation
2825-00-388-68612081 INTERCHANGEABLE
Packing Assembly,carbon
Northrop Grumman Systems Corporation Div Marine Systems
6850-00-489-9889 INTERCHANGEABLE
Brush Plating Solution,nickel
5950-00-539-7738WM-2081 INTERCHANGEABLE
Transformer,audio Frequency
Magnetic Components Inc
5330-00-564-2888208-1 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
The Dewey Electronics Corporation Div Pitometer Log Division
5360-00-731-9605 INTERCHANGEABLE
Spring,helical,compression
Cross-Reference Index
Part NumberManufacturer
212081 Fugle-Miller Laboratories (USA)
K359-24 Robertshaw Controls Co New Stanton Div (USA)
2081 Duke Mfg Co (USA)
SE5300-652 Robertshaw Controls Co New Stanton Div (USA)
K359 Robertshaw Controls Co New Stanton Div (USA)
137A PRIMARY Duke Mfg Co (USA)
Related Parts
5985-00-032-6427INTERCHANGEABLE
COUPLER,TRANSMISSION LINE
208-1
5910-00-186-9290INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
76S2606
5310-00-224-0488INTERCHANGEABLE
NUT,PLAIN,ASSEMBLED WASHER
5355-00-359-0405INTERCHANGEABLE
KNOB
137A
4410-00-377-9959INTERCHANGEABLE
ORIFICE PLATE
137A
2825-00-388-6861INTERCHANGEABLE
PACKING ASSEMBLY,CARBON
2081
6850-00-489-9889INTERCHANGEABLE
BRUSH PLATING SOLUTION,NICKEL
5950-00-539-7738INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
WM-2081
5330-00-564-2888INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
208-1
5360-00-731-9605INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5915-00-835-0361INTERCHANGEABLE
FILTER,LOW PASS
241-0302-010
4820-00-923-6831INTERCHANGEABLE
SEAT,VALVE
2081

Frequently Asked Questions

What is NSN 5930-00-001-3178?

NSN 5930-00-001-3178 is a Switch,thermostatic, manufactured by Duke Mfg Co, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-001-3178?

NSN 5930-00-001-3178 has 6 cross-referenced part numbers: 212081 (Fugle-Miller Laboratories), K359-24 (Robertshaw Controls Co New Stanton Div), 2081 (Duke Mfg Co), SE5300-652 (Robertshaw Controls Co New Stanton Div), K359 (Robertshaw Controls Co New Stanton Div) and 1 more.

What NSN replaces 5930-00-001-3178?

There are 12 known substitutes for 5930-00-001-3178: 5985-00-032-6427, 5910-00-186-9290, 5310-00-224-0488 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 137A?

Key specifications for 137A: Bulb Length: 7.562 INCHES NOMINAL IN; Bulb Diameter: 0.250 INCHES NOMINAL IN; Overall Length: 1.656 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE. 16 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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