The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-332-2416, 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 17 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 | 4520-01-332-2416 |
| Primary Part Number | TRS-4012 |
| Item Name | Heating Element,electrical,nonim |
| 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 |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Voltage in Volts and Current Type | 120.0 AC SINGLE VOLTAGE |
| Body Style | TUBULAR, PLAIN |
| Maximum Wattage Rating in Watts | 555.0 SINGLE VOLTAGE |
| Terminal Length | 0.375 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Outside Diameter | 0.246 INCHES NOMINAL IN |
| Effective Heating Length | 40.000 INCHES NOMINAL IN |
| Mounting Method Style | TERMINAL MOUNTED |
| Nominal Thread Size | 0.164 INCHES STUD IN |
| Element Radiation Spectrum | NONINFRARED |
| Material | STEEL SHEATH |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) 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 |
NSN 4520-01-332-2416 is a Heating Element,electrical,nonim, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-332-2416 has 2 manufacturer part numbers on file: 283143 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), TRS-4012 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for TRS-4012: Phase: THREE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Voltage in Volts and Current Type: 120.0 AC SINGLE VOLTAGE. 17 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.