The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-172-1973, 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 Raytheon Company Div Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-172-1973 |
| Primary Part Number | 497898 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Raytheon Company Div Corp |
| Status | ACTIVE |
| Phase | NOT RATED SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Voltage in Volts and Current Type | 115.0 AC SINGLE VOLTAGE |
| Body Style | STRIP, WEDGE |
| Maximum Wattage Rating in Watts | 50.0 SINGLE VOLTAGE |
| Terminal Length | 48.000 INCHES NOMINAL IN |
| Element Connection Style | WIRE LEAD |
| Effective Heating Length | 15.000 INCHES NOMINAL IN |
| Heat Quantity | 1 |
| Terminal Arrangement Style | PARALLEL AT ONE END EXCEPT ON 3/4 AND 1 INCH WIDTH IN |
| Element Radiation Spectrum | NONINFRARED |
| 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 |
|---|---|
| 497898 PRIMARY | Raytheon Company Div Corp (USA) |
| Reference | Meaning |
|---|---|
| 111-120 | 5/9 Secondary reference Manufacturer's Commercial Finance, Llc Dba Electro-Flex Heat |
| 497898-1 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company Div Corp |
| 497898 | 5/9 Secondary reference Raytheon Company Dba Raytheon Co |
NSN 4520-00-172-1973 is a Heating Element,electrical,nonim, manufactured by Raytheon Company Div Corp, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-172-1973 has 1 manufacturer part number on file: 497898 (Raytheon Company Div Corp).
4 possible matches (shared part number, not a government interchangeability claim): 1650-00-455-8135, 2990-00-949-4307, 2520-01-211-3190. Verify interchangeability with system specifications before substitution.
Key specifications for 497898: Phase: NOT RATED SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Voltage in Volts and Current Type: 115.0 AC SINGLE VOLTAGE. 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.