The Extension Card, cataloged under National Stock Number 5840-00-925-4687, is classified within Federal Supply Class 5840 (Radar Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Crane Electronics, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Extension Card |
| FSC / FSG | 5840 — Radar Equipment, Except Airborne (FSG 58) |
| Manufacturers | Crane Electronics, Inc. (CAGE 09062); Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc (CAGE 51283) |
| Parameter | Value |
|---|---|
| NSN | 5840-00-925-4687 |
| Primary Part Number | 100847 |
| Item Name | Extension Card |
| FSC / FSG | 5840 / 58 — Radar Equipment, Except Airborne |
| Manufacturer | Crane Electronics, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 100847 PRIMARY | Crane Electronics, Inc. (USA) |
| 100847 PRIMARY | Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc (USA) |
| Reference | Meaning |
|---|---|
| 100847 | 5/9 Secondary reference Aiken Advanced Systems Inc a Div of Amstar Technical Products Inc an Affil of Amstar Corp |
NSN 5840-00-925-4687 is a Extension Card, manufactured by Crane Electronics, Inc., classified under FSC 5840, Radar Equipment, Except Airborne. Status: active.
NSN 5840-00-925-4687 has 2 manufacturer part numbers on file: 100847 (Crane Electronics, Inc.), 100847 (Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4940-01-018-0405, 8140-01-196-3930. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5840-00-925-4687 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.