The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-252-4549, 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 Tayco Engineering, Inc. Dba Tayco Engineering. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-252-4549 |
| Primary Part Number | 17-3747 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Tayco Engineering, Inc. Dba Tayco Engineering |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Length | 7.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC SINGLE VOLTAGE |
| Body Style | STANDARD ELEMENT |
| Maximum Wattage Rating in Watts | 180.0 SINGLE VOLTAGE |
| Terminal Length | 10.000 INCHES NOMINAL IN |
| Element Connection Style | WIRE LEAD |
| Case Diameter | 0.015 INCHES NOMINAL IN |
| Mounting Method Style | FRICTION TYPE MOUNTING FACILITY |
| Watt Density Rating | 6.02 PER SQUARE INCH SINGLE VOLTAGE |
| Element Radiation Spectrum | NONINFRARED |
| Width | 4.000 INCHES NOMINAL IN |
| Material | PLASTIC EPOXY SHEATH |
| 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 |
|---|---|
| 17-3747 PRIMARY | Tayco Engineering, Inc. Dba Tayco Engineering (USA) |
| Reference | Meaning |
|---|---|
| 653637 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4520-01-252-4549 is a Heating Element,electrical,nonim, manufactured by Tayco Engineering, Inc. Dba Tayco Engineering, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-252-4549 has 1 manufacturer part number on file: 17-3747 (Tayco Engineering, Inc. Dba Tayco Engineering).
Key specifications for 17-3747: Terminal Quantity: 2; Length: 7.500 INCHES NOMINAL IN; Voltage in Volts and Current Type: 115.0 AC SINGLE VOLTAGE; Body Style: STANDARD ELEMENT. 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.