The Panel,indicating,light Transmitt, cataloged under National Stock Number 6220-01-021-0181, is classified within Federal Supply Class 6220 (Electric Vehicular Lights and Fixtures) of the Lighting Fixtures and Lamps group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6220-01-021-0181 |
| Primary Part Number | 143501 |
| Item Name | Panel,indicating,light Transmitt |
| FSC / FSG | 6220 / 62 — Electric Vehicular Lights and Fixtures |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Overall Thickness | 0.220 INCHES MAXIMUM IN |
| Material | PLASTIC PANEL |
| 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 |
|---|---|
| 143501 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 6220-01-021-0181 is a Panel,indicating,light Transmitt, manufactured by Northrop Grumman Systems Corporation, classified under FSC 6220, Electric Vehicular Lights and Fixtures. Status: active.
NSN 6220-01-021-0181 has 1 manufacturer part number on file: 143501 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-621-1112. Verify interchangeability with system specifications before substitution.
Key specifications for 143501: Overall Height: 3.625 INCHES MAXIMUM IN; Overall Thickness: 0.220 INCHES MAXIMUM IN; Overall Length: 7.000 INCHES MAXIMUM IN; Material: PLASTIC PANEL. 2 specifications are documented in the U.S. Government catalog.
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.