The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-366-8659, 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 15 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 | 4520-00-366-8659 |
| Primary Part Number | P422B54 |
| 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 |
| Terminal Quantity | 2 |
| Length | 24.750 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 240.0 AC SINGLE VOLTAGE |
| Body Style | TUBULAR, SINGLE COIL DOUBLE TERMINALS |
| Maximum Wattage Rating in Watts | 4000.0 SINGLE VOLTAGE |
| Terminal Length | 0.375 INCHES NOMINAL IN |
| Mounting Facility Length | 0.875 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Mounting Method Style | AXIAL STUD TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.625 INCHES STUD IN |
| Element Radiation Spectrum | NONINFRARED |
| Material | COPPER SHEATH |
| Thread Series Designator | UNF STUD |
| Thread Quantity | 18.0 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 4520-00-366-8659 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 4520-00-366-8659 has 2 manufacturer part numbers on file: 3024A (Curtis Wilbur Co Inc), P422B54 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for P422B54: Terminal Quantity: 2; Length: 24.750 INCHES NOMINAL IN; Voltage in Volts and Current Type: 240.0 AC SINGLE VOLTAGE; Body Style: TUBULAR, SINGLE COIL DOUBLE TERMINALS. 15 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.