The Light,landing,aircraft, cataloged under National Stock Number 6220-01-437-7640, is classified within Federal Supply Class 6220 (Electric Vehicular Lights and Fixtures) of the Lighting Fixtures and Lamps group. The manufacturer of record is Cef Industries, Llc Dba Cef Industries Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 6220-01-437-7640 |
| Primary Part Number | 8555M9 |
| Item Name | Light,landing,aircraft |
| FSC / FSG | 6220 / 62 — Electric Vehicular Lights and Fixtures |
| Manufacturer | Cef Industries, Llc Dba Cef Industries Inc |
| Status | ACTIVE |
| Features Provided | RETRACTABLE LIGHT |
| 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 |
|---|---|
| 8555M9 PRIMARY | Cef Industries, Llc Dba Cef Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 45-0325-1 | 5/9 Secondary reference Grimes Aerospace Company |
| 6220PL1484291 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 8555M9 | 5/2 Secondary reference U.S. Government activity |
| 45-0325-3 | 5/9 Secondary reference Grimes Aerospace Company |
NSN 6220-01-437-7640 is a Light,landing,aircraft, manufactured by Cef Industries, Llc Dba Cef Industries Inc, classified under FSC 6220, Electric Vehicular Lights and Fixtures. Status: active.
NSN 6220-01-437-7640 has 1 manufacturer part number on file: 8555M9 (Cef Industries, Llc Dba Cef Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 6220-01-657-7449. Verify interchangeability with system specifications before substitution.
Key specifications for 8555M9: Features Provided: RETRACTABLE LIGHT; Part Name Assigned by Controlling Agency: RETRACTABLE LANDING LIGHT. 1 specification is 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.