The Heating Element,electrical,immer, cataloged under National Stock Number 4520-01-046-3909, 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 Watlow Electric Manufacturing Co Dba Watlow. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-046-3909 |
| Primary Part Number | L8AX177A |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Watlow Electric Manufacturing Co Dba Watlow |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Terminal Quantity | 2 |
| Voltage in Volts and Current Type | 240.0 AC SINGLE VOLTAGE |
| Body Style | CARTRIDGE, SCREW TYPE |
| Maximum Wattage Rating in Watts | 2000.0 SINGLE VOLTAGE |
| Terminal Length | 48.000 INCHES NOMINAL IN |
| Element Connection Style | WIRE LEAD |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Nominal Thread Size | 0.500 INCHES MOUNTING FACILITY IN |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Material | STEEL SHEATH |
| Thread Series Designator | NPT MOUNTING FACILITY |
| Thread Quantity | 14.0 PER INCH MOUNTING FACILITY |
| Element Quantity | 2 |
| 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 |
|---|---|
| L8AX177A PRIMARY | Watlow Electric Manufacturing Co Dba Watlow (USA) |
| Reference | Meaning |
|---|---|
| 086892-1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 086892-1 | 5/2 Secondary reference U.S. Government activity |
NSN 4520-01-046-3909 is a Heating Element,electrical,immer, manufactured by Watlow Electric Manufacturing Co Dba Watlow, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-046-3909 has 1 manufacturer part number on file: L8AX177A (Watlow Electric Manufacturing Co Dba Watlow).
Key specifications for L8AX177A: Phase: SINGLE SINGLE VOLTAGE; Terminal Quantity: 2; Voltage in Volts and Current Type: 240.0 AC SINGLE VOLTAGE; Body Style: CARTRIDGE, SCREW TYPE. 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.