The Heating Element,electrical,immer, cataloged under National Stock Number 4520-01-524-4261, 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 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-524-4261 |
| Primary Part Number | 155-500726-661 |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| Status | ACTIVE |
| FSC Application Data | SG811-CF-MMC-010 ELECTRICAL SYSTEM PARTS LIST, BELOW SLEW |
| Phase | THREE SINGLE VOLTAGE |
| Voltage in Volts and Current Type | 480.0 AC SINGLE VOLTAGE |
| 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 |
|---|---|
| 500726-661 | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| 155-500726-661 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| 247035 | Allied Systems Company Dba Allied Systems Co (USA) |
NSN 4520-01-524-4261 is a Heating Element,electrical,immer, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-524-4261 has 3 manufacturer part numbers on file: 500726-661 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), 155-500726-661 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), 247035 (Allied Systems Company Dba Allied Systems Co).
Key specifications for 155-500726-661: FSC Application Data: SG811-CF-MMC-010 ELECTRICAL SYSTEM PARTS LIST, BELOW SLEW; Phase: THREE SINGLE VOLTAGE; Voltage in Volts and Current Type: 480.0 AC SINGLE VOLTAGE; Special Features: 5 INCH STEEL FLANGE, MOISTURE RESISTANT TERMINAL HOUSING, 33.063 IN TANK DIMENSION IN. 3 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.