The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-266-1312, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 23 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-266-1312 |
| Primary Part Number | 271495-7 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Length | 30.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 440.0 AC SINGLE VOLTAGE |
| Body Style | ODD/IRREGULAR SHAPED ITEMS |
| Maximum Wattage Rating in Watts | 17500.0 SINGLE VOLTAGE |
| Terminal Length | 2.281 INCHES NOMINAL IN |
| Mounting Facility Length | 1.188 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Outside Diameter | 0.496 INCHES NOMINAL IN |
| Effective Heating Length | 30.000 INCHES NOMINAL IN |
| Mounting Method Style | AXIAL STUD TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.312 INCHES STUD IN |
| Nominal Thread Size | 0.875 INCHES MOUNTING FACILITY IN |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Material | STEEL COMP 321 SHEATH |
| Thread Series Designator | UNF STUD |
| Thread Series Designator | UNF MOUNTING FACILITY |
| Thread Quantity | 14.0 PER INCH MOUNTING FACILITY |
| Thread Quantity | 24.0 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 |
| Part Number | Manufacturer |
|---|---|
| 271495-7 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 8A123G022 | Wellman Thermal Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 8A123G022 | 3/9 Design control — primary reference General Electric Co Aviation Service Seattle of Aviation Service Dept |
| 271495 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 4520-01-266-1312 is a Heating Element,electrical,nonim, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-266-1312 has 2 manufacturer part numbers on file: 271495-7 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 8A123G022 (Wellman Thermal Systems Corp).
1 possible match (shared part number, not a government interchangeability claim): 4520-01-298-4339. Verify interchangeability with system specifications before substitution.
Key specifications for 271495-7: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Length: 30.000 INCHES NOMINAL IN. 23 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.