PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W58Heater,thermal Release

Ward Leonard Ct Llc · NSN 5999-00-285-1941 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-285-1941 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-285-1941. Primary manufacturer part number: W58.
Features
  • Heater,thermal Release — FSC 5999
  • 1 verified cross-reference
  • Primary manufacturer: Ward Leonard Ct Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,thermal Release, cataloged under National Stock Number 5999-00-285-1941, 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 Ward Leonard Ct Llc. 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
NSN5999-00-285-1941
Primary Part NumberW58
Item NameHeater,thermal Release
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerWard Leonard Ct Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Verified Substitutes 4
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
5999-01-286-9302W58 INTERCHANGEABLE
Heater,thermal Release
Rockwell Automation, Inc. Dba Rockwell Automation
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 Ward Leonard Ct Llc (USA)
Related Parts
4730-00-476-5441INTERCHANGEABLE
TEE,HOSE
W-58
5310-00-516-0337INTERCHANGEABLE
WASHER,SLOTTED
11A8212
5999-01-286-9302INTERCHANGEABLE
HEATER,THERMAL RELEASE
W58
6625-01-468-3106INTERCHANGEABLE
ADAPTER,TEST
3260AS1280-1

Frequently Asked Questions

What is NSN 5999-00-285-1941?

NSN 5999-00-285-1941 is a Heater,thermal Release, manufactured by Ward Leonard Ct Llc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-285-1941?

NSN 5999-00-285-1941 has 1 cross-referenced part number: W58 (Ward Leonard Ct Llc).

What NSN replaces 5999-00-285-1941?

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

What are the specifications of W58?

Key specifications for W58: Special Features: METAL;1.937 IN. LG;0.375 IN. DIA;FOUR COILS;ONE HOLE AT EACH END 0.188 IN. DIA;TWO SCREWS 0.125 IN. DIA IN; Special Features: METAL;1.937 IN. LG;0.375 IN. DIA;FOUR COILS;ONE HOLE AT EACH END 0.188 IN. DIA;TWO SCREWS 0.125 IN. DIA IN. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com