PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D-WK-756-20 ITEM 6Heater,thermal Release

Walz & Krenzer Inc Div Mapeco Products · NSN 5999-01-374-7999 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-374-7999 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-374-7999. Primary manufacturer part number: D-WK-756-20 ITEM 6.
Features
  • Heater,thermal Release — FSC 5999
  • Mounting Facility Type and Quantity: 2 SLOT AND 2 UNTHREADED HOLE(S)
  • Mounting Facility Type and Quantity: 2 SLOT AND 2 UNTHREADED HOLE(S)
  • 3 verified cross-references
  • Primary manufacturer: Walz & Krenzer Inc Div Mapeco Products
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,thermal Release, cataloged under National Stock Number 5999-01-374-7999, 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 Walz & Krenzer Inc Div Mapeco Products. Government technical data includes 2 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-374-7999
Primary Part NumberD-WK-756-20 ITEM 6
Item NameHeater,thermal Release
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerWalz & Krenzer Inc Div Mapeco Products
StatusACTIVE
Mounting Facility Type and Quantity2 SLOT AND 2 UNTHREADED HOLE(S)
Mounting Facility Type and Quantity2 SLOT AND 2 UNTHREADED HOLE(S)
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5999-00-761-8703 (H25)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeV
Weight0.1000 lbs
Cube0.2797 cu ft
Verified Substitutes 12
5999-00-761-8703H25 SUCCESSOR
Heater,thermal Release
Siemens Energy and Automation Inc Siemens Furnas Controls Div
5120-00-278-03255120-00-278-0325 INTERCHANGEABLE
Screw Starter,hand
General Services Administration Federal Supply Service
5340-00-533-6946 INTERCHANGEABLE
Strap,retaining
5985-00-581-7756A-174-4 INTERCHANGEABLE
Support,waveguide
Burke Products Inc
5950-00-834-246443001099-000 INTERCHANGEABLE
Transformer,audio Frequency
Dne Technologies, Inc
4730-00-868-51928C3-4 INTERCHANGEABLE
Trap,steam
Itt Fluid Technology Corp Itt Mcdonnell and Miller
5977-00-880-1537H25 INTERCHANGEABLE
Holder,electrical Contact Brush
Arriflex Corp
5905-00-957-1998 INTERCHANGEABLE
Plate,mounting
4940-01-073-4853H25C-1N-6-N-E-P3 INTERCHANGEABLE
Leak Detector,refrigerant Gas
Bacharach, Inc.
5950-01-104-4443 INTERCHANGEABLE
Transformer,audio Frequency
Cross-Reference Index
Part NumberManufacturer
H-25 Westinghouse Electric Corp General Control Div (USA)
D-WK-756-20 ITEM 6 Walz and Krenzer Inc (USA)
D-WK-756-20 ITEM 6 PRIMARY Walz & Krenzer Inc Div Mapeco Products (USA)
Related Parts
SUCCESSOR 5999-00-761-8703 Heater,thermal Release · H25
5120-00-278-0325INTERCHANGEABLE
SCREW STARTER,HAND
5120-00-278-0325
5340-00-533-6946INTERCHANGEABLE
STRAP,RETAINING
5985-00-581-7756INTERCHANGEABLE
SUPPORT,WAVEGUIDE
A-174-4
5950-00-834-2464INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
43001099-000
4730-00-868-5192INTERCHANGEABLE
TRAP,STEAM
8C3-4
5977-00-880-1537INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
H25
5905-00-957-1998INTERCHANGEABLE
PLATE,MOUNTING
4940-01-073-4853INTERCHANGEABLE
LEAK DETECTOR,REFRIGERANT GAS
H25C-1N-6-N-E-P3
5950-01-104-4443INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
8105-01-122-7394INTERCHANGEABLE
BAG,PLASTIC
H-25
6350-01-381-7280INTERCHANGEABLE
HORN,SIGNAL
H25

Frequently Asked Questions

What is NSN 5999-01-374-7999?

NSN 5999-01-374-7999 is a Heater,thermal Release, manufactured by Walz & Krenzer Inc Div Mapeco Products, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-374-7999?

NSN 5999-01-374-7999 has 3 cross-referenced part numbers: H-25 (Westinghouse Electric Corp General Control Div), D-WK-756-20 ITEM 6 (Walz and Krenzer Inc), D-WK-756-20 ITEM 6 (Walz & Krenzer Inc Div Mapeco Products).

What NSN replaces 5999-01-374-7999?

There are 12 known substitutes for 5999-01-374-7999: 5999-00-761-8703, 5120-00-278-0325, 5340-00-533-6946 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D-WK-756-20 ITEM 6?

Key specifications for D-WK-756-20 ITEM 6: Overall Length: 25.125 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 2 SLOT AND 2 UNTHREADED HOLE(S); Overall Width: 12.000 INCHES NOMINAL IN; Overall Height: 7.156 INCHES NOMINAL IN. 8 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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