The Heating Element,electrical,immer, cataloged under National Stock Number 4520-01-249-4741, 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 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-249-4741 |
| Primary Part Number | TM0-1216F1VE4T2XX |
| 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 |
| Phase | THREE SINGLE VOLTAGE |
| Length | 33.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 440.0 AC SINGLE VOLTAGE |
| Body Style | TUBULAR, FLANGED, W/TERMINALS |
| Hole or Slot Quantity | 8 |
| Flange Thickness | 1.000 INCHES NOMINAL IN |
| Maximum Wattage Rating in Watts | 16000.0 SINGLE VOLTAGE |
| Mounting Method Style | FLANGE TYPE MOUNTING FACILITY |
| Thermostat Range | +60.0 TO 250.0 FAHRENHEIT DEGF |
| Bolt Circle Diameter | 9.500 INCHES NOMINAL IN |
| Heat Control Type | THERMOSTAT |
| Material | STEEL SHEATH |
| Hole Diameter | 0.875 INCHES NOMINAL IN |
| Element Quantity | 12 |
| 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 |
|---|---|
| D-155-554791-999 | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| TM0-1216F1VE4T2XX PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
NSN 4520-01-249-4741 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 4520-01-249-4741 has 2 manufacturer part numbers on file: D-155-554791-999 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), TM0-1216F1VE4T2XX (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for TM0-1216F1VE4T2XX: Phase: THREE SINGLE VOLTAGE; Length: 33.000 INCHES NOMINAL IN; Voltage in Volts and Current Type: 440.0 AC SINGLE VOLTAGE; Body Style: TUBULAR, FLANGED, W/TERMINALS. 14 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.