The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-339-2068, 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 Valad Electric Heating Corp.. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4520-01-339-2068 |
| Primary Part Number | VDH-251M |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Valad Electric Heating Corp. |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 1 |
| Voltage in Volts and Current Type | 440.0 AC SINGLE VOLTAGE |
| Maximum Wattage Rating in Watts | 500.0 SINGLE VOLTAGE |
| Element Connection Style | HERMETICALLY SEALED STUD |
| Mounting Method Style | FLANGE TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.164 INCHES STUD IN |
| Element Radiation Spectrum | NONINFRARED |
| Material | STEEL CORROSION RESISTING SHEATH |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD |
| Thread Quantity | 32.0 PER INCH STUD |
| 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 |
|---|---|
| VDH-251M PRIMARY | Valad Electric Heating Corp. (USA) |
| 88-0101 FIND 2 | Valad Electric Heating Corp. (USA) |
| Reference | Meaning |
|---|---|
| 88-0101 | D/9 Drawing number reference only Valad Electric Heating Corp. |
NSN 4520-01-339-2068 is a Heating Element,electrical,nonim, manufactured by Valad Electric Heating Corp., classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-339-2068 has 2 manufacturer part numbers on file: VDH-251M (Valad Electric Heating Corp.), 88-0101 FIND 2 (Valad Electric Heating Corp.).
2 possible matches (shared part number, not a government interchangeability claim): 4520-01-339-7771, 4520-01-340-1154. Verify interchangeability with system specifications before substitution.
Key specifications for VDH-251M: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 1; Voltage in Volts and Current Type: 440.0 AC SINGLE VOLTAGE. 12 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.