The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-545-5578, 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 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-545-5578 |
| Primary Part Number | 106-304544-003 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| Status | ACTIVE |
| Body Style | FINNED, TUBULAR, TERMINAL'S AT EACH END |
| Unpackaged Unit Width | 16.060 INCHES NOMINAL IN |
| Terminal Box Environmental Protection | MOISTURE RESISTANT |
| Mounting Method Style | FLANGE TYPE MOUNTING FACILITY |
| Unpackaged Unit Height | 13.000 INCHES NOMINAL IN |
| Material | NICKEL ALLOY SHEATH |
| 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 |
|---|---|
| 106-304544-003 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| EAS81122-1 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| Reference | Meaning |
|---|---|
| EAS81822-1 | 5/9 Secondary reference U.S. Government activity |
| EAS81822-1 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
NSN 4520-01-545-5578 is a Heating Element,electrical,nonim, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-545-5578 has 2 manufacturer part numbers on file: 106-304544-003 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), EAS81122-1 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for 106-304544-003: Body Style: FINNED, TUBULAR, TERMINAL'S AT EACH END; Unpackaged Unit Width: 16.060 INCHES NOMINAL IN; Terminal Box Environmental Protection: MOISTURE RESISTANT; Mounting Method Style: FLANGE TYPE MOUNTING FACILITY. 6 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.