PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BL25Heater,thermal Release

Eaton Corporation Dba Eaton Inoac · NSN 5999-00-863-9632 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-863-9632 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-863-9632. Primary manufacturer part number: BL25.
Features
  • Heater,thermal Release — FSC 5999
  • 4 verified cross-references
  • Primary manufacturer: Eaton Corporation Dba Eaton Inoac
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,thermal Release, cataloged under National Stock Number 5999-00-863-9632, 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. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Catalog Facts
Item NameHeater,thermal Release
FSC / FSG5999 — No Item Name Available (FSG 59)
ManufacturersEaton Corporation Dba Eaton Inoac (CAGE 89946); Westinghouse Electric Corp Control Business Unit (CAGE 11660); Westinghouse Electric Corp (CAGE 79500)
Successor NSN5999-00-917-3616 — Heater,thermal Release
Technical Specifications
ParameterValue
NSN5999-00-863-9632
Primary Part NumberBL25
Item NameHeater,thermal Release
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEaton Corporation Dba Eaton Inoac
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5999-00-917-3616 (966-498)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Verified Substitutes 6
5999-00-917-3616966-498 SUCCESSOR
Heater,thermal Release
Eaton Corporation Dba Eaton Inoac
5960-00-263-9910 INTERCHANGEABLE
Electron Tube
2030-00-390-1192 INTERCHANGEABLE
Tube with Nut
5960-00-577-3205 INTERCHANGEABLE
Electron Tube
6240-01-313-8956BL-2-5 INTERCHANGEABLE
Lamp,incandescent
Itw Food Equipment Group Llc Dba Hobart Service
6515-01-364-2016BL25 INTERCHANGEABLE
Holter Kit
Beck-Lee Inc
Cross-Reference Index
Part NumberManufacturer
BL25 PRIMARY Eaton Corporation Dba Eaton Inoac (USA)
966498 Westinghouse Electric Corp Control Business Unit
966498 Westinghouse Electric Corp (USA)
BL25 Westinghouse Electric Corp (USA)
Related Parts
SUCCESSOR 5999-00-917-3616 Heater,thermal Release · 966-498
5960-00-263-9910INTERCHANGEABLE
ELECTRON TUBE
2030-00-390-1192INTERCHANGEABLE
TUBE WITH NUT
5960-00-577-3205INTERCHANGEABLE
ELECTRON TUBE
6240-01-313-8956INTERCHANGEABLE
LAMP,INCANDESCENT
BL-2-5
6515-01-364-2016INTERCHANGEABLE
HOLTER KIT
BL25

Frequently Asked Questions

What is NSN 5999-00-863-9632?

NSN 5999-00-863-9632 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 5999-00-863-9632?

NSN 5999-00-863-9632 has 4 cross-referenced part numbers: BL25 (Eaton Corporation Dba Eaton Inoac), 966498 (Westinghouse Electric Corp Control Business Unit), 966498 (Westinghouse Electric Corp), BL25 (Westinghouse Electric Corp).

What NSN replaces 5999-00-863-9632?

There are 6 known substitutes for 5999-00-863-9632: 5999-00-917-3616, 5960-00-263-9910, 2030-00-390-1192 and 3 more. Verify interchangeability with system specifications before substitution.

Is NSN 5999-00-863-9632 still in active supply?

NSN 5999-00-863-9632 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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