PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50573Heating Element,electrical,nonim

Wells Mfg Co · NSN 4520-00-878-3904 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-878-3904 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-878-3904. Primary manufacturer part number: 50573.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Element Quantity: 2
  • Mounting Method Style: FLANGE TYPE MOUNTING FACILITY
  • Phase: SINGLE SINGLE VOLTAGE
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 0.375 INCHES NOMINAL IN
  • Mounting Facility Length: 8.250 INCHES NOMINAL IN
  • Hole or Slot Quantity: 3
  • Maximum Wattage Rating in Watts: 4000.0 SINGLE VOLTAGE
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 4520-00-878-3904, 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 Wells Mfg Co. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-00-878-3904
Primary Part Number50573
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerWells Mfg Co
StatusACTIVE
Element Quantity2
Mounting Method StyleFLANGE TYPE MOUNTING FACILITY
PhaseSINGLE SINGLE VOLTAGE
Center to Center Distance Between Mounting Facilities Parallel to Length0.375 INCHES NOMINAL IN
Mounting Facility Length8.250 INCHES NOMINAL IN
Hole or Slot Quantity3
Maximum Wattage Rating in Watts4000.0 SINGLE VOLTAGE
Center to Center Distance Between Mounting Facilities Parallel to Width3.000 INCHES NOMINAL IN
Mounting Facility Width2.437 INCHES NOMINAL IN
Flange Thickness0.031 INCHES NOMINAL IN
Element Connection StyleSTUD TYPE
Voltage in Volts and Current Type208.0 AC SINGLE VOLTAGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5930-00-008-70175057-3 INTERCHANGEABLE
Switch Assembly
General Microwave Corporation Div Kratos Microwave Electronics
5950-00-165-2596377164 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon Co
3455-00-224-8923 INTERCHANGEABLE
File,rotary
3110-00-227-460401611-3500 INTERCHANGEABLE
Bearing,ball,annular
Watts Regulator Company
5360-00-253-72512274152 INTERCHANGEABLE
Spring,helical,compression
General Motors Llc Dba General Motors Llc
5315-01-069-513621049 INTERCHANGEABLE
Pin
Paccar Winch Inc Dba Paccar Winch Division
5977-01-328-487950573 INTERCHANGEABLE
Ring,electrical Contact
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
8455-01-554-181150573 INTERCHANGEABLE
Holder,badge
General Binding Corporation Dba G B C
1550-01-567-113350573 INTERCHANGEABLE
Unmanned Aircraft
Aerovironment, Inc. Dba Aerovironment Inc
5120-01-604-551950-573 INTERCHANGEABLE
Oiler,hand Held
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
50573 PRIMARY Wells Mfg Co (USA)
AT-1155 Wells Mfg Co (USA)
Related Parts
5930-00-008-7017INTERCHANGEABLE
SWITCH ASSEMBLY
5057-3
5950-00-165-2596INTERCHANGEABLE
TRANSFORMER,POWER
377164
3455-00-224-8923INTERCHANGEABLE
FILE,ROTARY
3110-00-227-4604INTERCHANGEABLE
BEARING,BALL,ANNULAR
01611-3500
5360-00-253-7251INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2274152
5315-01-069-5136INTERCHANGEABLE
PIN
21049
5977-01-328-4879INTERCHANGEABLE
RING,ELECTRICAL CONTACT
50573
8455-01-554-1811INTERCHANGEABLE
HOLDER,BADGE
50573
1550-01-567-1133INTERCHANGEABLE
UNMANNED AIRCRAFT
50573
5120-01-604-5519INTERCHANGEABLE
OILER,HAND HELD
50-573

Frequently Asked Questions

What is NSN 4520-00-878-3904?

NSN 4520-00-878-3904 is a Heating Element,electrical,nonim, manufactured by Wells Mfg Co, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-00-878-3904?

NSN 4520-00-878-3904 has 2 cross-referenced part numbers: 50573 (Wells Mfg Co), AT-1155 (Wells Mfg Co).

What NSN replaces 4520-00-878-3904?

There are 10 known substitutes for 4520-00-878-3904: 5930-00-008-7017, 5950-00-165-2596, 3455-00-224-8923 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50573?

Key specifications for 50573: Element Quantity: 2; Mounting Method Style: FLANGE TYPE MOUNTING FACILITY; Phase: SINGLE SINGLE VOLTAGE; Center to Center Distance Between Mounting Facilities Parallel to Length: 0.375 INCHES NOMINAL IN. 13 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