The Light Assembly,indicator, cataloged under National Stock Number 6220-01-577-0041, is classified within Federal Supply Class 6220 (Electric Vehicular Lights and Fixtures) of the Lighting Fixtures and Lamps group. The manufacturer of record is Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Light Assembly,indicator |
| FSC / FSG | 6220 — Electric Vehicular Lights and Fixtures (FSG 62) |
| Manufacturers | Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company (CAGE 10402); Pierce Manufacturing Inc (CAGE 04664) |
| Parameter | Value |
|---|---|
| NSN | 6220-01-577-0041 |
| Primary Part Number | PSU0CDCR |
| Item Name | Light Assembly,indicator |
| FSC / FSG | 6220 / 62 — Electric Vehicular Lights and Fixtures |
| Manufacturer | Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PSU0CDCR PRIMARY | Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company (USA) |
| 61-5074-0012 | Pierce Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| 61-2593 | 5/9 Secondary reference Pierce Manufacturing Inc |
| 01-0663506NC9 | 5/9 Secondary reference Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company |
NSN 6220-01-577-0041 is a Light Assembly,indicator, manufactured by Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company, classified under FSC 6220, Electric Vehicular Lights and Fixtures. Status: active.
NSN 6220-01-577-0041 has 2 manufacturer part numbers on file: PSU0CDCR (Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company), 61-5074-0012 (Pierce Manufacturing Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-589-5441. Verify interchangeability with system specifications before substitution.
Possible hazard — SDS may be required (DLA HMIC P). 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.