The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-474-9522, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4520-00-474-9522 |
| Primary Part Number | 972225-1 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 400.0 |
| Voltage in Volts and Current Type | 200.0 AC SINGLE VOLTAGE |
| Maximum Wattage Rating in Watts | 150.0 SINGLE VOLTAGE |
| Terminal Length | 12.000 INCHES MINIMUM IN |
| Element Connection Style | WIRE LEAD |
| Heat 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 |
|---|---|
| 972225-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 111215 | C/1 Advisory reference — outside the item-of-supply concept E/m Coating Services Div E/m Coating Services North Hollywood |
NSN 4520-00-474-9522 is a Heating Element,electrical,nonim, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-474-9522 has 1 manufacturer part number on file: 972225-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
4 possible matches (shared part number, not a government interchangeability claim): 5325-00-903-7567, 5998-01-294-6298, 1450-01-351-0206. Verify interchangeability with system specifications before substitution.
Key specifications for 972225-1: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 400.0; Voltage in Volts and Current Type: 200.0 AC SINGLE VOLTAGE; Maximum Wattage Rating in Watts: 150.0 SINGLE VOLTAGE. 7 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.