PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

620-783Switch,thermostatic

Ampex Systems Corp · NSN 5930-00-055-5079 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-055-5079 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-055-5079. Primary manufacturer part number: 620-783.
Features
  • Switch,thermostatic — FSC 5930
  • Contact Action Stimulus: INCREASE
  • Temp Sensing Element Type: INTERNAL SENSOR
  • Body Length: 1.562 INCHES NOMINAL IN
  • Nonpile-Up Contact Arrangement: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
  • Contact Adjustability: DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
  • Terminal Type: TAB, SOLDER LUG
  • Unthreaded Mounting Hole Diameter: 0.094 INCHES NOMINAL IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,thermostatic, cataloged under National Stock Number 5930-00-055-5079, 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 Ampex Systems Corp. Government technical data includes 9 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.

Technical Specifications
ParameterValue
NSN5930-00-055-5079
Primary Part Number620-783
Item NameSwitch,thermostatic
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerAmpex Systems Corp
StatusACTIVE
Contact Action StimulusINCREASE
Temp Sensing Element TypeINTERNAL SENSOR
Body Length1.562 INCHES NOMINAL IN
Nonpile-Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Contact AdjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
Terminal TypeTAB, SOLDER LUG
Unthreaded Mounting Hole Diameter0.094 INCHES NOMINAL IN
Media for Which DesignedGAS OR LIQUID
Mounting MethodBASE AND UNTHREADED HOLE(S)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5935-00-192-4859 INTERCHANGEABLE
Jack,telephone
6605-00-591-7147620783 INTERCHANGEABLE
Compensation Equipment,compass
Honeywell International Inc. Dba Honeywell International
5950-01-057-5614620783-5 INTERCHANGEABLE
Transformer,power
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
Cross-Reference Index
Part NumberManufacturer
620-783 Ampex Systems Corp (USA)
PC72473-2 Viavi Solutionsllc (USA)
PC72473-2 Marconi Electronics Inc Marconi Instruments Div (USA)
WIS6969C2-2 Marconi Electronics Inc Marconi Instruments Div (USA)
Related Parts
5935-00-192-4859INTERCHANGEABLE
JACK,TELEPHONE
6605-00-591-7147INTERCHANGEABLE
COMPENSATION EQUIPMENT,COMPASS
620783
5950-01-057-5614INTERCHANGEABLE
TRANSFORMER,POWER
620783-5

Frequently Asked Questions

What is NSN 5930-00-055-5079?

NSN 5930-00-055-5079 is a Switch,thermostatic, manufactured by Ampex Systems Corp, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-055-5079?

NSN 5930-00-055-5079 has 4 cross-referenced part numbers: 620-783 (Ampex Systems Corp), PC72473-2 (Viavi Solutionsllc), PC72473-2 (Marconi Electronics Inc Marconi Instruments Div), WIS6969C2-2 (Marconi Electronics Inc Marconi Instruments Div).

What NSN replaces 5930-00-055-5079?

There are 3 known substitutes for 5930-00-055-5079: 5935-00-192-4859, 6605-00-591-7147, 5950-01-057-5614. Verify interchangeability with system specifications before substitution.

What are the specifications of 620-783?

Key specifications for 620-783: Overall Height: 0.375 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Overall Length: 1.625 INCHES NOMINAL IN; Temp Sensing Element Type: INTERNAL SENSOR. 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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