The Heating Element,electrical,immer, cataloged under National Stock Number 4520-01-032-2353, 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 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-032-2353 |
| Primary Part Number | 156-115997-024 |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| Status | ACTIVE |
| Terminal Quantity | 4 |
| Length | 29.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 440.0 AC ALL VOLTAGES |
| Body Style | FLANGE, TYPE |
| Terminal Length | 0.500 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Mounting Method Style | PIPE THREAD TYPE MOUNTING FACILITY |
| Nominal Thread Size | 2.500 INCHES SCREW IN |
| Conduit Opening Size | 0.875 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING RESISTANCE WIRE |
| Thread Series Designator | NPT SCREW |
| Thread Quantity | 8.0 PER INCH SCREW |
| Element Quantity | 2 |
| 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 |
|---|---|
| 156-115997-024 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| Reference | Meaning |
|---|---|
| GCH2.C | 5/9 Secondary reference Glenn Electric Sales Corp |
| KC4007-018 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 008-037-118 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| GCH2.C | 5/9 Secondary reference Waage Mfg Co |
| 008-037-1181 | 5/2 Secondary reference U.S. Government activity |
| C1714-1 | 5/9 Secondary reference Truheat Inc. |
| 56-115997-024 | 5/9 Secondary reference Psi Products Inc |
NSN 4520-01-032-2353 is a Heating Element,electrical,immer, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-032-2353 has 1 manufacturer part number on file: 156-115997-024 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for 156-115997-024: Terminal Quantity: 4; Length: 29.000 INCHES NOMINAL IN; Voltage in Volts and Current Type: 440.0 AC ALL VOLTAGES; Body Style: FLANGE, TYPE. 13 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.