The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-481-2689, 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 Electric Machinery Dresser Industries Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-481-2689 |
| Primary Part Number | 129A123 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Electric Machinery Dresser Industries Inc |
| Status | ACTIVE |
| Phase | NOT RATED SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Length | 32.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC SINGLE VOLTAGE |
| Body Style | TUBULAR, U SHAPED |
| Maximum Wattage Rating in Watts | 500.0 SINGLE VOLTAGE |
| Terminal Length | 0.500 INCHES NOMINAL IN |
| Mounting Facility Length | 0.500 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Effective Heating Length | 32.000 INCHES NOMINAL IN |
| Mounting Method Style | SCREW PLUG OR BUSHING TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.190 INCHES STUD IN |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Material | STEEL CORROSION RESISTING SHEATH |
| Thread Series Designator | UNF STUD |
| Thread Quantity | 32.0 PER INCH STUD |
| Element Quantity | 1 |
| 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 |
|---|---|
| 129A123 PRIMARY | Electric Machinery Dresser Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 100E045PC63 | 5/9 Secondary reference Electric Machinery Dresser Industries Inc |
NSN 4520-00-481-2689 is a Heating Element,electrical,nonim, manufactured by Electric Machinery Dresser Industries Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-481-2689 has 1 manufacturer part number on file: 129A123 (Electric Machinery Dresser Industries Inc).
Key specifications for 129A123: Phase: NOT RATED SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Length: 32.000 INCHES NOMINAL IN. 19 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.