The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-105-3476, 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 Indeeco Llc Dba Indeeco. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Manufacturers | Indeeco Llc Dba Indeeco (CAGE 74924); Chromalox Inc (CAGE 07131) |
| Parameter | Value |
|---|---|
| NSN | 4520-01-105-3476 |
| Primary Part Number | 521X-39593-04705 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Indeeco Llc Dba Indeeco |
| Status | ACTIVE |
| 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 |
|---|---|
| 521X-39593-04705 | Indeeco Llc Dba Indeeco (USA) |
| 322-074905-024 | Chromalox Inc (USA) |
| Reference | Meaning |
|---|---|
| 1FB44-1 | 5/2 Secondary reference U.S. Government activity |
| 6388-42 | 3/9 Design control — primary reference Air Dry Co of America, Llc |
| 6388-42 | 3/2 Design control — primary reference U.S. Government activity |
| TA11053476 | 5/9 Secondary reference Tamco, Inc. Dba Technical Assistance Company Div Technical Assistance Company |
| TA11053476 | 5/9 Secondary reference Intelliworks Ht |
NSN 4520-01-105-3476 is a Heating Element,electrical,nonim, manufactured by Indeeco Llc Dba Indeeco, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-105-3476 has 2 manufacturer part numbers on file: 521X-39593-04705 (Indeeco Llc Dba Indeeco), 322-074905-024 (Chromalox Inc).
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.