The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-333-1937, 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 Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil. Government technical data includes 5 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4520-01-333-1937 |
| Primary Part Number | 1014-00-D ITEM 16 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 440.0 AC SINGLE VOLTAGE |
| Maximum Wattage Rating in Watts | 500.0 SINGLE VOLTAGE |
| Terminal Length | 24.000 INCHES NOMINAL IN |
| Material | COPPER ALLOY SHEATH |
| 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 |
|---|---|
| 1014-00-D ITEM 16 PRIMARY | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
| 529X-135148 | Indeeco Llc Dba Indeeco (USA) |
| Reference | Meaning |
|---|---|
| 4508XP876 | 5/9 Secondary reference Indeeco Llc Dba Indeeco |
| 4309XP806 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 1014-00-D ITEM 9 | 3/9 Design control — primary reference Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| 1014-00-D | D/9 Drawing number reference only Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| 43-505-020 | 5/9 Secondary reference Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| 4308XP806 | 5/9 Secondary reference Indeeco Llc Dba Indeeco |
NSN 4520-01-333-1937 is a Heating Element,electrical,nonim, manufactured by Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-333-1937 has 2 manufacturer part numbers on file: 1014-00-D ITEM 16 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil), 529X-135148 (Indeeco Llc Dba Indeeco).
1 possible match (shared part number, not a government interchangeability claim): 4420-01-333-4040. Verify interchangeability with system specifications before substitution.
Key specifications for 1014-00-D ITEM 16: Voltage in Volts and Current Type: 440.0 AC SINGLE VOLTAGE; Maximum Wattage Rating in Watts: 500.0 SINGLE VOLTAGE; Terminal Length: 24.000 INCHES NOMINAL IN; Material: COPPER ALLOY SHEATH. 5 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.