The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-072-2189, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-072-2189 |
| Primary Part Number | 563457 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Length | 4.141 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC SINGLE VOLTAGE |
| Body Style | TUBULAR, "L" SHAPED W/TERMINALS |
| Hole or Slot Quantity | 4 |
| Maximum Wattage Rating in Watts | 150.0 SINGLE VOLTAGE |
| Terminal Length | 0.391 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Mounting Method Style | SLOT OR HOLE TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.164 INCHES MOUNTING FACILITY IN |
| Element Radiation Spectrum | NONINFRARED |
| Width | 12.688 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING SHEATH |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) MOUNTING FACILITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 563457 | Lockheed Martin Corporation Div Rms (USA) |
| 3-32-34-1 | Watlow Electric Manufacturing Co Dba Watlow (USA) |
| Reference | Meaning |
|---|---|
| 3148363 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 563457 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 4520-01-072-2189 is a Heating Element,electrical,nonim, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-072-2189 has 2 manufacturer part numbers on file: 563457 (Lockheed Martin Corporation Div Rms), 3-32-34-1 (Watlow Electric Manufacturing Co Dba Watlow).
2 possible matches (shared part number, not a government interchangeability claim): 2920-01-252-6244, 5920-01-691-8636. Verify interchangeability with system specifications before substitution.
Key specifications for 563457: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Length: 4.141 INCHES NOMINAL IN. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.