PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W53Heater,thermal Release

Ward Leonard Ct Llc · NSN 5999-00-893-9129 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-893-9129 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-893-9129. Primary manufacturer part number: W53.
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 5999-00-893-9129, 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.

Catalog Facts
Item NameHeater,thermal Release
FSC / FSG5999 — No Item Name Available (FSG 59)
ManufacturersWard Leonard Ct Llc (CAGE 63743)
Technical Specifications
ParameterValue
NSN5999-00-893-9129
Primary Part NumberW53
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
5325-00-457-6959 INTERCHANGEABLE
Ring,retaining
9905-00-721-8801W5-3B INTERCHANGEABLE
Sign,traffic
Federal Prison Industries, Inc - Ebg
6680-00-885-8721W53 INTERCHANGEABLE
Indicator,sight,liquid
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
4931-01-208-570712618149-15 INTERCHANGEABLE
Heater
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
Cross-Reference Index
Part NumberManufacturer
W53 PRIMARY Ward Leonard Ct Llc (USA)
Related Parts
5325-00-457-6959INTERCHANGEABLE
RING,RETAINING
9905-00-721-8801INTERCHANGEABLE
SIGN,TRAFFIC
W5-3B
6680-00-885-8721INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
W53
4931-01-208-5707INTERCHANGEABLE
HEATER
12618149-15

Frequently Asked Questions

What is NSN 5999-00-893-9129?

NSN 5999-00-893-9129 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 5999-00-893-9129?

NSN 5999-00-893-9129 has 1 cross-referenced part number: W53 (Ward Leonard Ct Llc).

What NSN replaces 5999-00-893-9129?

There are 4 known substitutes for 5999-00-893-9129: 5325-00-457-6959, 9905-00-721-8801, 6680-00-885-8721 and 1 more. Verify interchangeability with system specifications before substitution.

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