PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W58Heater,thermal Release

Rockwell Automation, Inc. Dba Rockwell Automation · NSN 5999-01-286-9302 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-286-9302 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-286-9302. Primary manufacturer part number: W58.
Features
  • Heater,thermal Release — FSC 5999
  • Current Rating for Which Designed: 16.2 AMPERES MINIMUM AND 21.4 AMPERES MAXIMUM
  • Current Rating for Which Designed: 16.2 AMPERES MINIMUM AND 21.4 AMPERES MAXIMUM
  • 1 verified cross-reference
  • Primary manufacturer: Rockwell Automation, Inc. Dba Rockwell Automation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,thermal Release, cataloged under National Stock Number 5999-01-286-9302, 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 Rockwell Automation, Inc. Dba Rockwell Automation. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-286-9302
Primary Part NumberW58
Item NameHeater,thermal Release
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerRockwell Automation, Inc. Dba Rockwell Automation
StatusACTIVE
Current Rating for Which Designed16.2 AMPERES MINIMUM AND 21.4 AMPERES MAXIMUM
Current Rating for Which Designed16.2 AMPERES MINIMUM AND 21.4 AMPERES MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeCC
Verified Substitutes 4
5999-00-285-1941W58 INTERCHANGEABLE
Heater,thermal Release
Ward Leonard Ct Llc
4730-00-476-5441W-58 INTERCHANGEABLE
Tee,hose
Cvg Sprague Devices, Llc Dba Cvg Sprague Devices, Llc
5310-00-516-033711A8212 INTERCHANGEABLE
Washer,slotted
Napco International Llc Dba Napco International Inc
6625-01-468-31063260AS1280-1 INTERCHANGEABLE
Adapter,test
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
W58 PRIMARY Rockwell Automation, Inc. Dba Rockwell Automation (USA)
Related Parts
5999-00-285-1941INTERCHANGEABLE
HEATER,THERMAL RELEASE
W58
4730-00-476-5441INTERCHANGEABLE
TEE,HOSE
W-58
5310-00-516-0337INTERCHANGEABLE
WASHER,SLOTTED
11A8212
6625-01-468-3106INTERCHANGEABLE
ADAPTER,TEST
3260AS1280-1

Frequently Asked Questions

What is NSN 5999-01-286-9302?

NSN 5999-01-286-9302 is a Heater,thermal Release, manufactured by Rockwell Automation, Inc. Dba Rockwell Automation, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-286-9302?

NSN 5999-01-286-9302 has 1 cross-referenced part number: W58 (Rockwell Automation, Inc. Dba Rockwell Automation).

What NSN replaces 5999-01-286-9302?

There are 4 known substitutes for 5999-01-286-9302: 5999-00-285-1941, 4730-00-476-5441, 5310-00-516-0337 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W58?

Key specifications for W58: Current Rating for Which Designed: 16.2 AMPERES MINIMUM AND 21.4 AMPERES MAXIMUM; Special Features: BI-METALLIC ELEMENT MULTI-APPLICATION OVERLOAD RELAY APPLICATION NEMA SIZE 0 TO NEMA SIZE 4; End Item Identification: ALLEN BRADLEY OVERLOAD RELAYS 500 SERIES; Current Rating for Which Designed: 16.2 AMPERES MINIMUM AND 21.4 AMPERES MAXIMUM. 6 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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