The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-385-1090, 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 Naval Sea Systems Command. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-385-1090 |
| Primary Part Number | 6374744 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Phase | THREE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Length | 83.700 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 120.0 AC SINGLE VOLTAGE |
| Body Style | TUBULAR, PLAIN |
| Maximum Wattage Rating in Watts | 875.0 SINGLE VOLTAGE |
| Terminal Length | 4.000 INCHES NOMINAL IN |
| Element Connection Style | WIRE LEAD |
| Material Document and Classification | INCOLOY SERIES 800 MFR REF SINGLE MATERIAL RESPONSE SHEATH |
| Material Document and Classification | MIL-W-16878/4 MIL SPEC SINGLE MATERIAL RESPONSE RESISTANCE WIRE |
| Outside Diameter | 0.315 INCHES NOMINAL IN |
| Effective Heating Length | 79.000 INCHES NOMINAL IN |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Material | MAGNESIUM OXIDE RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION |
| Material | NICKEL ALLOY AND IRON AND CHROMIUM SHEATH |
| Material | PLASTIC POLYTRIFLUOROETHYLENE RESISTANCE WIRE |
| Element Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6374744 PRIMARY | Naval Sea Systems Command (USA) |
| 074908-052 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| STRI-82XX120V875W | Chromalox Inc (USA) |
| 6374744 | Ram-System Gmbh (DEU) |
NSN 4520-01-385-1090 is a Heating Element,electrical,nonim, manufactured by Naval Sea Systems Command, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-385-1090 has 4 manufacturer part numbers on file: 6374744 (Naval Sea Systems Command), 074908-052 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), STRI-82XX120V875W (Chromalox Inc), 6374744 (Ram-System Gmbh).
Key specifications for 6374744: Phase: THREE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Length: 83.700 INCHES NOMINAL IN. 19 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.
NSN 4520-01-385-1090 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.