The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-496-0056, 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 Curtiss-Wright Electro-Mechanical Corporation Div Curtiss-Wright Emd. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-496-0056 |
| Primary Part Number | 4D98505ITEM 27 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Curtiss-Wright Emd |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Length | 15.250 INCHES MINIMUM AND 15.750 INCHES MAXIMUM IN |
| Voltage in Volts and Current Type | 240.0 DC SINGLE VOLTAGE |
| Body Style | TUBULAR, SINGLE COIL, DOUBLE TERMINALS |
| Maximum Wattage Rating in Watts | 1100.0 SINGLE VOLTAGE |
| Terminal Length | 0.760 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Nominal Thread Size | 0.190 INCHES STUD IN |
| Specification/standard Data | 81349MIL-H-22577 GOVERNMENT SPECIFICATION |
| Heat Quantity | 1 |
| Minimum Clearance Distance | 4.000 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | III TYPE |
| Element Radiation Spectrum | NONINFRARED |
| Material | NICKEL ALLOY SHEATH |
| Thread Quantity | 32 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 |
| Part Number | Manufacturer |
|---|---|
| 4D98505ITEM 27 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Curtiss-Wright Emd (USA) |
| 6060B30H01 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| TRI-3643XX | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
NSN 4520-01-496-0056 is a Heating Element,electrical,nonim, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Curtiss-Wright Emd, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-496-0056 has 3 manufacturer part numbers on file: 4D98505ITEM 27 (Curtiss-Wright Electro-Mechanical Corporation Div Curtiss-Wright Emd), 6060B30H01 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), TRI-3643XX (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for 4D98505ITEM 27: Terminal Quantity: 2; Length: 15.250 INCHES MINIMUM AND 15.750 INCHES MAXIMUM IN; Voltage in Volts and Current Type: 240.0 DC SINGLE VOLTAGE; Body Style: TUBULAR, SINGLE COIL, DOUBLE TERMINALS. 16 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.