The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-787-1840, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-787-1840 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Length | 29.750 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 440.0 DC SINGLE VOLTAGE |
| Body Style | TUBULAR, THREADED TERMINALS |
| Maximum Wattage Rating in Watts | 1100.0 SINGLE VOLTAGE |
| Terminal Length | 1.875 INCHES NOMINAL IN |
| Element Connection Style | HERMETICALLY SEALED STUD |
| Effective Heating Length | 22.063 INCHES NOMINAL IN |
| Nominal Thread Size | 0.190 INCHES STUD IN |
| Heat Quantity | 1 |
| Nondefinitive Spec/std Data | 3 TYPE |
| Element Radiation Spectrum | NONINFRARED |
| Width | 10.625 INCHES MINIMUM AND 10.875 INCHES MAXIMUM IN |
| Material | CHROMIUM AND NICKEL RESISTANCE WIRE |
| Material | MAGNESIUM OXIDE RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION |
| 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 |
| Reference | Meaning |
|---|---|
| PA303-2 | 5/9 Secondary reference Middleby Marshall Inc Toastmaster Cooking and Warming Equipment Div |
| MILH22577 | 4/1 Identification reference U.S. Government activity |
NSN 4520-00-787-1840 is a Heating Element,electrical,nonim, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-00-787-1840: Terminal Quantity: 2; Length: 29.750 INCHES NOMINAL IN; Voltage in Volts and Current Type: 440.0 DC SINGLE VOLTAGE; Body Style: TUBULAR, THREADED TERMINALS. 18 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.