The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-079-3203, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-079-3203 |
| Primary Part Number | SEF140-120V750W |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — No Item Name Available |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Mounting Facility Width | 0.312 INCHES NOMINAL IN |
| Phase | SINGLE SINGLE VOLTAGE |
| Element Radiation Spectrum | NONINFRARED |
| Length | 9.750 INCHES NOMINAL IN |
| Frequency in Hertz | 60.0 |
| Thread Series Designator | UNF STUD |
| Material | STEEL AND CHROMIUM SHEATH |
| Mounting Method Style | SLOT OR HOLE TYPE MOUNTING FACILITY |
| Width | 2.000 INCHES NOMINAL IN |
| Mounting Facility Length | 0.500 INCHES NOMINAL IN |
| Nominal Thread Size | 0.190 INCHES STUD IN |
| Terminal Arrangement Style | IN LINE (TANDEM) AT ONE END |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 13.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 120.0 AC SINGLE VOLTAGE |
| Body Style | STRIP, FINNED |
| Element Quantity | 1 |
| Heat Quantity | 1 |
| Hole or Slot Quantity | 2 |
| Element Connection Style | STUD TYPE |
| Thread Quantity | 32.0 PER INCH STUD |
| Terminal Length | 0.500 INCHES NOMINAL IN |
| Maximum Wattage Rating in Watts | 750.1 SINGLE VOLTAGE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 127729 | L3harris Technologies, Inc. (USA) |
| SEF140-120V750W PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| 127729-001 | L3harris Technologies, Inc. (USA) |
NSN 4520-01-079-3203 is a Heating Element,electrical,nonim, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520 (No Item Name Available). Status: active.
NSN 4520-01-079-3203 has 3 cross-referenced part numbers: 127729 (L3harris Technologies, Inc.), SEF140-120V750W (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), 127729-001 (L3harris Technologies, Inc.).
There are 3 known substitutes for 4520-01-079-3203: 2520-00-510-5719, 5355-01-105-8144, 4520-01-127-3772. Verify interchangeability with system specifications before substitution.
Key specifications for SEF140-120V750W: Overall Length: 14.000 INCHES NOMINAL IN; Terminal Quantity: 2; Mounting Facility Width: 0.312 INCHES NOMINAL IN; Phase: SINGLE SINGLE VOLTAGE. 24 total characteristics are documented in the Federal Logistics Information System.