PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W72Heating Element,electrical,nonim

Rockwell Automation, Inc. Dba Rockwell Automation · NSN 4520-01-551-6577 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-551-6577 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-551-6577. Primary manufacturer part number: W72.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Unpackaged Unit Width: 1.470 INCHES NOMINAL IN
  • Unpackaged Unit Height: 1.310 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Rockwell Automation, Inc. Dba Rockwell Automation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-551-6577, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal 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 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-551-6577
Primary Part NumberW72
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerRockwell Automation, Inc. Dba Rockwell Automation
StatusACTIVE
Unpackaged Unit Width1.470 INCHES NOMINAL IN
Unpackaged Unit Height1.310 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5940-00-103-4851F3052C INTERCHANGEABLE
Terminal,lug
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5120-00-278-0341W-154 INTERCHANGEABLE
Wrench,adjustable
Ngk Metals Corporation Dba N G K Berylco
4320-01-110-7353W-104 INTERCHANGEABLE
Head,thrust Bearing
Circor Naval Solutions Llc Dba Warren Pumps
Cross-Reference Index
Part NumberManufacturer
EAS81366-9 Hdt Expeditionary Systems Inc (USA)
EAS81366-9 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
EAS81366-9 Drs Environmental Systems Inc (USA)
W72 PRIMARY Rockwell Automation, Inc. Dba Rockwell Automation (USA)
Related Parts
5940-00-103-4851INTERCHANGEABLE
TERMINAL,LUG
F3052C
5120-00-278-0341INTERCHANGEABLE
WRENCH,ADJUSTABLE
W-154
4320-01-110-7353INTERCHANGEABLE
HEAD,THRUST BEARING
W-104

Frequently Asked Questions

What is NSN 4520-01-551-6577?

NSN 4520-01-551-6577 is a Heating Element,electrical,nonim, manufactured by Rockwell Automation, Inc. Dba Rockwell Automation, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-551-6577?

NSN 4520-01-551-6577 has 4 cross-referenced part numbers: EAS81366-9 (Hdt Expeditionary Systems Inc), EAS81366-9 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), EAS81366-9 (Drs Environmental Systems Inc), W72 (Rockwell Automation, Inc. Dba Rockwell Automation).

What NSN replaces 4520-01-551-6577?

There are 3 known substitutes for 4520-01-551-6577: 5940-00-103-4851, 5120-00-278-0341, 4320-01-110-7353. Verify interchangeability with system specifications before substitution.

What are the specifications of W72?

Key specifications for W72: Special Features: OPERATING TEMPERATURES: SIZED FOR 104 DEG F; TYPE W - CLASS 20: RECOMMENDED FOR GENERAL APPLICATIONS DEGF; Unpackaged Unit Width: 1.470 INCHES NOMINAL IN; Unpackaged Unit Height: 1.310 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: ELEMENT, HEATER. 4 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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