PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33KRelay,thermal

Reliance Comm/tec Corp Lorain Products Div · NSN 5945-00-523-1765 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-523-1765 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-523-1765. Primary manufacturer part number: 33K.
Features
  • Relay,thermal — FSC 5945
  • 2 verified cross-references
  • Primary manufacturer: Reliance Comm/tec Corp Lorain Products Div
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-523-1765, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Reliance Comm/tec Corp Lorain Products Div. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRelay,thermal
FSC / FSG5945 — No Item Name Available (FSG 59)
ManufacturersCooper Industries Inc Cooper Distribution Equipment Div (CAGE 04009); Reliance Comm/tec Corp Lorain Products Div (CAGE 74006)
Technical Specifications
ParameterValue
NSN5945-00-523-1765
Primary Part Number33K
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerReliance Comm/tec Corp Lorain Products Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5360-00-330-084942556 INTERCHANGEABLE
Spring,helical,compression
Woodward Hrt Inc
5325-00-700-09977000997 INTERCHANGEABLE
Grommet,nonmetallic
U S Army Tank Automotive Command Amsta-Im-Mm
4920-00-838-6314 INTERCHANGEABLE
Matrix Module Assy
5950-01-176-5617TW-64752 INTERCHANGEABLE
Transformer,power
Magnetika
5962-01-201-450742556 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
5360-01-240-067642556 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
42556 Cooper Industries Inc Cooper Distribution Equipment Div (USA)
33K PRIMARY Reliance Comm/tec Corp Lorain Products Div (USA)
Related Parts
5360-00-330-0849INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
42556
5325-00-700-0997INTERCHANGEABLE
GROMMET,NONMETALLIC
7000997
4920-00-838-6314INTERCHANGEABLE
MATRIX MODULE ASSY
5950-01-176-5617INTERCHANGEABLE
TRANSFORMER,POWER
TW-64752
5962-01-201-4507INTERCHANGEABLE
MICROCIRCUIT,MEMORY
42556
5360-01-240-0676INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
42556

Frequently Asked Questions

What is NSN 5945-00-523-1765?

NSN 5945-00-523-1765 is a Relay,thermal, manufactured by Reliance Comm/tec Corp Lorain Products Div, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-523-1765?

NSN 5945-00-523-1765 has 2 cross-referenced part numbers: 42556 (Cooper Industries Inc Cooper Distribution Equipment Div), 33K (Reliance Comm/tec Corp Lorain Products Div).

What NSN replaces 5945-00-523-1765?

There are 6 known substitutes for 5945-00-523-1765: 5360-00-330-0849, 5325-00-700-0997, 4920-00-838-6314 and 3 more. Verify interchangeability with system specifications before substitution.

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