PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K42Heater,thermal Release

Siemens Energy and Automation Inc Siemens Furnas Controls Div · NSN 5999-00-907-5566 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-907-5566 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-907-5566. Primary manufacturer part number: K42.
Features
  • Heater,thermal Release — FSC 5999
  • Current Rating for Which Designed: 6.4 AMPERES MINIMUM AND 10.1 AMPERES MAXIMUM
  • Current Rating for Which Designed: 6.4 AMPERES MINIMUM AND 10.1 AMPERES MAXIMUM
  • 1 verified cross-reference
  • Primary manufacturer: Siemens Energy and Automation Inc Siemens Furnas Controls Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,thermal Release, cataloged under National Stock Number 5999-00-907-5566, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Siemens Energy and Automation Inc Siemens Furnas Controls Div. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-907-5566
Primary Part NumberK42
Item NameHeater,thermal Release
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerSiemens Energy and Automation Inc Siemens Furnas Controls Div
StatusACTIVE
Current Rating for Which Designed6.4 AMPERES MINIMUM AND 10.1 AMPERES MAXIMUM
Current Rating for Which Designed6.4 AMPERES MINIMUM AND 10.1 AMPERES MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeCC
Verified Substitutes 7
5120-00-017-3927 INTERCHANGEABLE
Contact Positioner,terminal Crim
6515-00-064-0951 INTERCHANGEABLE
Tube,colon,surgical
5360-00-312-4845K42 INTERCHANGEABLE
Spring,helical,extension
The Dewey Electronics Corporation Div Pitometer Log Division
4320-00-588-0638 INTERCHANGEABLE
Impeller,pump,centrifugal
5120-01-335-8627K42 INTERCHANGEABLE
Contact Positioner,terminal Crim
Daniels Manufacturing Corporation
3460-01-344-2951K42 INTERCHANGEABLE
Wheel,abrasive
Sioux Tools Inc
5330-01-396-4356K-42 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
American Propulation Systems
Cross-Reference Index
Part NumberManufacturer
K42 PRIMARY Siemens Energy and Automation Inc Siemens Furnas Controls Div (USA)
Related Parts
5120-00-017-3927INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
6515-00-064-0951INTERCHANGEABLE
TUBE,COLON,SURGICAL
5360-00-312-4845INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
K42
4320-00-588-0638INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
5120-01-335-8627INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
K42
3460-01-344-2951INTERCHANGEABLE
WHEEL,ABRASIVE
K42
5330-01-396-4356INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
K-42

Frequently Asked Questions

What is NSN 5999-00-907-5566?

NSN 5999-00-907-5566 is a Heater,thermal Release, manufactured by Siemens Energy and Automation Inc Siemens Furnas Controls Div, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-907-5566?

NSN 5999-00-907-5566 has 1 cross-referenced part number: K42 (Siemens Energy and Automation Inc Siemens Furnas Controls Div).

What NSN replaces 5999-00-907-5566?

There are 7 known substitutes for 5999-00-907-5566: 5120-00-017-3927, 6515-00-064-0951, 5360-00-312-4845 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K42?

Key specifications for K42: Special Features: BIMETALLIC ELEMENT 1.15 SERVICE FACTOR; Current Rating for Which Designed: 6.4 AMPERES MINIMUM AND 10.1 AMPERES MAXIMUM; End Item Identification: A/C CONTROLLER P/N D5H1034X03 ONBOARD 210 WMEC C.G. VESSELS; Special Features: BIMETALLIC ELEMENT 1.15 SERVICE FACTOR. 6 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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