PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B1-3Heater,thermal Release

Schneider Electric Usa, Inc. · NSN 5999-00-769-4975 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-769-4975 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-769-4975. Primary manufacturer part number: B1-3.
Features
  • Heater,thermal Release — FSC 5999
  • 2 verified cross-references
  • Primary manufacturer: Schneider Electric Usa, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,thermal Release, cataloged under National Stock Number 5999-00-769-4975, 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 Schneider Electric Usa, Inc.. This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5999-00-769-4975
Primary Part NumberB1-3
Item NameHeater,thermal Release
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerSchneider Electric Usa, Inc.
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Weight0.0900 lbs
Cube0.0100 cu ft
Verified Substitutes 12
No Item Name Available
5410-00-244-7322 INTERCHANGEABLE
Screen,window,metal
4730-00-274-9255B13 INTERCHANGEABLE
Packing Nut
Sloan Valve Company
5950-00-290-7962B13 INTERCHANGEABLE
Transformer,power
B G Laboratories Inc.
5330-00-291-91511830 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5905-00-502-2727 INTERCHANGEABLE
Resistor,fixed,wire Wound,nonind
5905-00-502-2729 INTERCHANGEABLE
Resistor,fixed,wire Wound,nonind
5905-00-502-2730 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-502-2733 INTERCHANGEABLE
Resistor,fixed,wire Wound,nonind
5905-00-502-2738 INTERCHANGEABLE
Resistor,fixed,wire Wound
Cross-Reference Index
Part NumberManufacturer
B1-3 Schneider Electric Usa, Inc. (USA)
B1-3 Schneider Electric Usa, Inc. (USA)
Related Parts
5999-00-500-9337SUCCESSOR
NO ITEM NAME AVAILABLE
5410-00-244-7322INTERCHANGEABLE
SCREEN,WINDOW,METAL
4730-00-274-9255INTERCHANGEABLE
PACKING NUT
B13
5950-00-290-7962INTERCHANGEABLE
TRANSFORMER,POWER
B13
5330-00-291-9151INTERCHANGEABLE
SEAL,PLAIN ENCASED
1830
5905-00-502-2727INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,NONIND
5905-00-502-2729INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,NONIND
5905-00-502-2730INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-502-2733INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,NONIND
5905-00-502-2738INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-502-2749INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-502-2751INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,NONIND

Frequently Asked Questions

What is NSN 5999-00-769-4975?

NSN 5999-00-769-4975 is a Heater,thermal Release, manufactured by Schneider Electric Usa, Inc., classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-769-4975?

NSN 5999-00-769-4975 has 2 cross-referenced part numbers: B1-3 (Schneider Electric Usa, Inc.), B1-3 (Schneider Electric Usa, Inc.).

What NSN replaces 5999-00-769-4975?

There are 12 known substitutes for 5999-00-769-4975: 5999-00-500-9337, 5410-00-244-7322, 4730-00-274-9255 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B1-3?

Key specifications for B1-3: Special Features: BI-METALLIC ELEMENT;1.875 IN. LG;1.000 IN. W;0.563 IN. H;ONE ESCAPEMENT WHEEL;TWO 0.188 IN. DIA MTG HOLES SPACED 1.375 IN. C TO C IN; Special Features: BI-METALLIC ELEMENT;1.875 IN. LG;1.000 IN. W;0.563 IN. H;ONE ESCAPEMENT WHEEL;TWO 0.188 IN. DIA MTG HOLES SPACED 1.375 IN. C TO C IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-769-4975 still in active supply?

NSN 5999-00-769-4975 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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