The Heating Element,electrical,immer, cataloged under National Stock Number 4520-00-274-6323, 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 Northrop Grumman Systems Corporation. Government technical data includes 23 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-274-6323 |
| Primary Part Number | 680250PC20 |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Length | 10.875 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC SINGLE VOLTAGE |
| Body Style | CARTRIDGE, SCREW TYPE |
| Maximum Wattage Rating in Watts | 500.0 SINGLE VOLTAGE |
| Terminal Length | 0.500 INCHES NOMINAL IN |
| Mounting Facility Length | 0.625 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Outside Diameter | 0.750 INCHES NOMINAL IN |
| Mounting Method Style | SCREW PLUG OR BUSHING TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.138 INCHES STUD IN |
| Nominal Thread Size | 0.750 INCHES MOUNTING FACILITY IN |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Material | STEEL CORROSION RESISTING SHEATH |
| Material | NICKEL RESISTANCE WIRE |
| Thread Series Designator | NPT MOUNTING FACILITY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD |
| Thread Quantity | 14.0 PER INCH MOUNTING FACILITY |
| 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 |
|---|---|
| 680250PC20 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 847392 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
| 847392 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| S2407-65314PC20 | 5/2 Secondary reference U.S. Government activity |
NSN 4520-00-274-6323 is a Heating Element,electrical,immer, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-274-6323 has 1 manufacturer part number on file: 680250PC20 (Northrop Grumman Systems Corporation).
Key specifications for 680250PC20: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Length: 10.875 INCHES NOMINAL IN. 23 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.