The Heating Element,electrical,immer, cataloged under National Stock Number 4520-01-075-7523, 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 E & M Equipment Co. 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-075-7523 |
| Primary Part Number | E155-111082-006 |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | E & M Equipment Co |
| Status | ACTIVE |
| Flange Diameter | 7.500 INCHES NOMINAL IN |
| Phase | THREE SINGLE VOLTAGE |
| Terminal Quantity | 6 |
| Length | 17.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 500.0 AC SINGLE VOLTAGE |
| Body Style | FLANGE, TYPE |
| Hole or Slot Quantity | 8 |
| Flange Thickness | 0.625 INCHES NOMINAL IN |
| Maximum Wattage Rating in Watts | 4500.0 SINGLE VOLTAGE |
| Terminal Length | 0.500 INCHES NOMINAL IN |
| Element Connection Style | HERMETICALLY SEALED STUD |
| Mounting Method Style | FLANGE TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.250 INCHES STUD IN |
| Heat Quantity | 1 |
| Watt Density Rating | 53.0 PER SQUARE INCH SINGLE VOLTAGE |
| Bolt Circle Diameter | 6.000 INCHES NOMINAL IN |
| Conduit Opening Size | 1.000 INCHES NOMINAL IN |
| Element Radiation Spectrum | NONINFRARED |
| Material | NICKEL AND COPPER SHEATH |
| Thread Series Designator | UNF STUD |
| Thread Quantity | 28.0 PER INCH STUD |
| Hole Diameter | 0.750 INCHES NOMINAL IN |
| Element Quantity | 3 |
| 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 |
|---|---|
| E155-111082-006 PRIMARY | E & M Equipment Co (USA) |
| Reference | Meaning |
|---|---|
| TA10757523 | 5/9 Secondary reference Intelliworks Ht |
| C1812-1 | 5/9 Secondary reference Truheat Inc. |
| FL7.5DM | 5/9 Secondary reference Glenn Electric Sales Corp |
| TA10757523 | 3/9 Design control — primary reference Tamco, Inc. Dba Technical Assistance Company Div Technical Assistance Company |
| 155-111082-006 | 5/9 Secondary reference Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| 3F3BS17 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4520-01-075-7523 is a Heating Element,electrical,immer, manufactured by E & M Equipment Co, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-075-7523 has 1 manufacturer part number on file: E155-111082-006 (E & M Equipment Co).
Key specifications for E155-111082-006: Flange Diameter: 7.500 INCHES NOMINAL IN; Phase: THREE SINGLE VOLTAGE; Terminal Quantity: 6; Length: 17.000 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.