PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B2-1Heater,thermal Release

Schneider Electric Usa, Inc. · NSN 5999-00-045-6309 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-045-6309 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-045-6309. Primary manufacturer part number: B2-1.
Features
  • Heater,thermal Release — FSC 5999
  • 1 verified cross-reference
  • 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 5999-00-045-6309, 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 1 commercial cross-reference 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: Active.

Catalog Facts
Item NameHeater,thermal Release
FSC / FSG5999 — No Item Name Available (FSG 59)
ManufacturersSchneider Electric Usa, Inc. (CAGE 56365)
Technical Specifications
ParameterValue
NSN5999-00-045-6309
Primary Part NumberB2-1
Item NameHeater,thermal Release
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerSchneider Electric Usa, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-014-2434SAE J512 7 040110B INTERCHANGEABLE
Inverted Nut,tube Coupling
Sae International Dba Sae International
5910-00-196-0084 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
7320-00-336-5641B21 INTERCHANGEABLE
Shaft Assy
Insinger Machine Co
6680-00-394-7334B21 INTERCHANGEABLE
Tip,triangular
Schulze Mfg., Inc.
5999-00-419-0228B21 INTERCHANGEABLE
Heater,thermal Release
Ward Leonard Ct Llc
5365-00-685-7023402265-2 INTERCHANGEABLE
Shim
Raytheon Company Dba Raytheon
4310-00-829-5001B21 INTERCHANGEABLE
Pin,piston
Gardner Denver Inc.
3110-01-070-7981 INTERCHANGEABLE
Bearing,ball,annular
3110-01-164-1107B-21 INTERCHANGEABLE
Collar,bearing
United States Monorail Corp Stanspec Div
5120-01-278-4820B-21 INTERCHANGEABLE
Screwdriver,flat Tip
Ngk Metals Corporation Dba N G K Berylco
Cross-Reference Index
Part NumberManufacturer
B2-1 PRIMARY Schneider Electric Usa, Inc. (USA)
Related Parts
4730-00-014-2434INTERCHANGEABLE
INVERTED NUT,TUBE COUPLING
SAE J512 7 040110B
5910-00-196-0084INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
7320-00-336-5641INTERCHANGEABLE
SHAFT ASSY
B21
6680-00-394-7334INTERCHANGEABLE
TIP,TRIANGULAR
B21
5999-00-419-0228INTERCHANGEABLE
HEATER,THERMAL RELEASE
B21
5365-00-685-7023INTERCHANGEABLE
SHIM
402265-2
4310-00-829-5001INTERCHANGEABLE
PIN,PISTON
B21
3110-01-070-7981INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-01-164-1107INTERCHANGEABLE
COLLAR,BEARING
B-21
5120-01-278-4820INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
B-21
3010-01-284-5849INTERCHANGEABLE
DISC
B 21
5355-01-379-7666INTERCHANGEABLE
KNOB

Frequently Asked Questions

What is NSN 5999-00-045-6309?

NSN 5999-00-045-6309 is a Heater,thermal Release, manufactured by Schneider Electric Usa, Inc., classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-045-6309?

NSN 5999-00-045-6309 has 1 cross-referenced part number: B2-1 (Schneider Electric Usa, Inc.).

What NSN replaces 5999-00-045-6309?

There are 12 known substitutes for 5999-00-045-6309: 4730-00-014-2434, 5910-00-196-0084, 7320-00-336-5641 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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