The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-397-7079, 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 Indeeco Llc Dba Indeeco. Government technical data includes 26 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4520-01-397-7079 |
| Primary Part Number | 571X-74234-01603 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Indeeco Llc Dba Indeeco |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Length | 12.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 254.0 AC SINGLE VOLTAGE |
| Body Style | FINNED, TUBULAR, TERMINAL'S AT EACH END |
| Hole or Slot Quantity | 2 |
| Flange Thickness | 0.063 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.375 INCHES NOMINAL IN |
| Maximum Wattage Rating in Watts | 525.0 SINGLE VOLTAGE |
| Terminal Length | 0.750 INCHES NOMINAL IN |
| Mounting Facility Length | 2.000 INCHES NOMINAL IN |
| Element Connection Style | HERMETICALLY SEALED STUD |
| Outside Diameter | 1.125 INCHES NOMINAL IN |
| Mounting Method Style | FLANGE TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.250 INCHES STUD IN |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.250 INCHES NOMINAL IN |
| Material | MAGNESIUM OXIDE RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION |
| Material | NICKEL ALLOY RESISTANCE WIRE |
| Material | STEEL COMP 304 SHEATH |
| Thread Series Designator | UNF STUD |
| Mounting Facility Width | 1.563 INCHES NOMINAL IN |
| Thread Quantity | 28 PER INCH STUD |
| Element Quantity | 3 |
| 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 |
|---|---|
| 571X-74234-01603 PRIMARY | Indeeco Llc Dba Indeeco (USA) |
| Reference | Meaning |
|---|---|
| 89D1 | D/9 Drawing number reference only U.S. Government activity |
| 89D1 ITEM 84 | 5/2 Secondary reference U.S. Government activity |
NSN 4520-01-397-7079 is a Heating Element,electrical,nonim, manufactured by Indeeco Llc Dba Indeeco, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-397-7079 has 1 manufacturer part number on file: 571X-74234-01603 (Indeeco Llc Dba Indeeco).
Key specifications for 571X-74234-01603: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Length: 12.000 INCHES NOMINAL IN. 26 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.