PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H38Heater,thermal Release

Eaton Corporation Dba Eaton Inoac · NSN 5999-00-106-7278 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-106-7278 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-106-7278. Primary manufacturer part number: H38.
Features
  • Heater,thermal Release — FSC 5999
  • Material: COPPER ALLOY
  • Mounting Hole Diameter: 0.156 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S)
  • Material: COPPER ALLOY
  • Mounting Hole Diameter: 0.156 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S)
  • 5 verified cross-references
Applications
  • Applications requiring Copper Alloy construction
General Description

The Heater,thermal Release, cataloged under National Stock Number 5999-00-106-7278, 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 Eaton Corporation Dba Eaton Inoac. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-106-7278
Primary Part NumberH38
Item NameHeater,thermal Release
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEaton Corporation Dba Eaton Inoac
StatusCANCELLED
MaterialCOPPER ALLOY
Mounting Hole Diameter0.156 INCHES NOMINAL IN
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S)
MaterialCOPPER ALLOY
Mounting Hole Diameter0.156 INCHES NOMINAL IN
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S)
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5999-01-201-2161 (FH38)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight0.0350 lbs
Cube0.0035 cu ft
Verified Substitutes 12
No Item Name Available
5999-01-201-2161FH38 SUCCESSOR
Heater,thermal Release
Eaton Corporation Dba Eaton Inoac
5360-00-063-0911 INTERCHANGEABLE
Spring,helical,compression
4810-00-094-819325740 INTERCHANGEABLE
Valve,linear,directional Control
Hydro-Aire Aerospace Corp
5950-00-098-7809755369 INTERCHANGEABLE
Transformer,audio Frequency
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2920-00-362-05830155613-00 INTERCHANGEABLE
Cap,ignition Distribution
Hyster-Yale Group, Inc. Dba Yale Materials Handling
4320-00-396-2491H38 INTERCHANGEABLE
Ring,lantern
Circor Naval Solutions Llc Dba Warren Pumps
3110-00-493-3553180468 INTERCHANGEABLE
Bearing,ball,annular
Telemechanics Inc
3030-00-585-57562706-0471-07 INTERCHANGEABLE
Belt,v
Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters
4310-00-608-8076 INTERCHANGEABLE
Piston,compressor
Cross-Reference Index
Part NumberManufacturer
H38 PRIMARY Eaton Corporation Dba Eaton Inoac (USA)
S503C553G38 Westinghouse Electric Corp Control Business Unit
25740 Somat Company (USA)
177C524G38 Westinghouse Electric Corp Control Business Unit
FH38 E I L Instruments Inc (USA)
Related Parts
SUCCESSOR 5999-01-201-2161 Heater,thermal Release · FH38
5999-01-006-8042SUCCESSOR
NO ITEM NAME AVAILABLE
5360-00-063-0911INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4810-00-094-8193INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
25740
5950-00-098-7809INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
755369
2920-00-362-0583INTERCHANGEABLE
CAP,IGNITION DISTRIBUTION
0155613-00
4320-00-396-2491INTERCHANGEABLE
RING,LANTERN
H38
3110-00-493-3553INTERCHANGEABLE
BEARING,BALL,ANNULAR
180468
3030-00-585-5756INTERCHANGEABLE
BELT,V
2706-0471-07
4310-00-608-8076INTERCHANGEABLE
PISTON,COMPRESSOR
5955-00-735-4680INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5961-00-766-9381INTERCHANGEABLE
SEMICONDUCTOR DEVICE,PHOTO

Frequently Asked Questions

What is NSN 5999-00-106-7278?

NSN 5999-00-106-7278 is a Heater,thermal Release, manufactured by Eaton Corporation Dba Eaton Inoac, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-106-7278?

NSN 5999-00-106-7278 has 5 cross-referenced part numbers: H38 (Eaton Corporation Dba Eaton Inoac), S503C553G38 (Westinghouse Electric Corp Control Business Unit), 25740 (Somat Company), 177C524G38 (Westinghouse Electric Corp Control Business Unit), FH38 (E I L Instruments Inc).

What NSN replaces 5999-00-106-7278?

There are 12 known substitutes for 5999-00-106-7278: 5999-01-006-8042, 5999-01-201-2161, 5360-00-063-0911 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H38?

Key specifications for H38: Overall Height: 1.188 INCHES NOMINAL IN; Material: COPPER ALLOY; Overall Length: 1.812 INCHES NOMINAL IN; Mounting Hole Diameter: 0.156 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-106-7278 still in active supply?

NSN 5999-00-106-7278 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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