PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

415AHeating Element,electrical,nonim

Cooper Wiring Devices Inc. · NSN 4520-00-278-9840 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-278-9840 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-278-9840. Primary manufacturer part number: 415A.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Phase: NOT RATED SINGLE VOLTAGE
  • Length: 1.813 INCHES NOMINAL IN
  • Material: PORCELAIN RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION
  • Heat Quantity: 1
  • Element Quantity: 1
  • Element Radiation Spectrum: NONINFRARED
  • Element Connection Style: MEDIUM SCREW
Applications
  • Applications requiring Porcelain Resistance Wire Embedding/support Insulation construction
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-278-9840, 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 Cooper Wiring Devices Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4520-00-278-9840
Primary Part Number415A
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerCooper Wiring Devices Inc.
StatusCANCELLED
PhaseNOT RATED SINGLE VOLTAGE
Length1.813 INCHES NOMINAL IN
MaterialPORCELAIN RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION
Heat Quantity1
Element Quantity1
Element Radiation SpectrumNONINFRARED
Element Connection StyleMEDIUM SCREW
MaterialNICKEL AND CHROMIUM RESISTANCE WIRE
Body StyleODD/IRREGULAR SHAPED ITEMS
Maximum Wattage Rating in Watts660.0 SINGLE VOLTAGE
Voltage in Volts and Current Type115.0 AC SINGLE VOLTAGE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
4730-00-010-386713F06 INTERCHANGEABLE
Plug,pipe
Dana Off Highway Products, Llc
5805-00-483-4748415BW INTERCHANGEABLE
Telephone Circuit,trunk Signalin
Lucent Technologies Inc Corporate Headquarters
6625-00-544-8686415A INTERCHANGEABLE
Meter,standing Wave Ratio
Keysight Technologies Inc
Cross-Reference Index
Part NumberManufacturer
61649-1 Instruments and Flight Research, Inc. (USA)
415A PRIMARY Cooper Wiring Devices Inc. (USA)
Related Parts
4730-00-010-3867INTERCHANGEABLE
PLUG,PIPE
13F06
5805-00-483-4748INTERCHANGEABLE
TELEPHONE CIRCUIT,TRUNK SIGNALIN
415BW
6625-00-544-8686INTERCHANGEABLE
METER,STANDING WAVE RATIO
415A

Frequently Asked Questions

What is NSN 4520-00-278-9840?

NSN 4520-00-278-9840 is a Heating Element,electrical,nonim, manufactured by Cooper Wiring Devices Inc., classified under FSC 4520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4520-00-278-9840?

NSN 4520-00-278-9840 has 2 cross-referenced part numbers: 61649-1 (Instruments and Flight Research, Inc.), 415A (Cooper Wiring Devices Inc.).

What NSN replaces 4520-00-278-9840?

There are 3 known substitutes for 4520-00-278-9840: 4730-00-010-3867, 5805-00-483-4748, 6625-00-544-8686. Verify interchangeability with system specifications before substitution.

What are the specifications of 415A?

Key specifications for 415A: Phase: NOT RATED SINGLE VOLTAGE; Overall Length: 4.250 INCHES NOMINAL IN; Length: 1.813 INCHES NOMINAL IN; Material: PORCELAIN RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4520-00-278-9840 still in active supply?

NSN 4520-00-278-9840 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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