The Frequency Reference and Electron, cataloged under National Stock Number 6625-01-594-4656, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Safran Trusted 4d Inc.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-594-4656 |
| Primary Part Number | 1200-013 |
| Item Name | Frequency Reference and Electron |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Safran Trusted 4d Inc. |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 100.00 AC AND 240.00 AC |
| Storage Temp Range | -40.00 TO 85.00 CELSIUS DEGC |
| Unpackaged Unit Weight | 6.50 POUNDS LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | JZ |
| Part Number | Manufacturer |
|---|---|
| 1200-013 | Elcos (BEL) |
| 1200-013 PRIMARY | Safran Trusted 4d Inc. (USA) |
| 1200-013 | Orolia Global Services Ltd T/a Spectracom (GBR) |
| 1200-013 | Leonardo Uk Ltd (GBR) |
| 91923978 | Thales Sa (FRA) |
| Reference | Meaning |
|---|---|
| 10458612 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 6625-01-594-4656 is a Frequency Reference and Electron, manufactured by Safran Trusted 4d Inc., classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-594-4656 has 5 manufacturer part numbers on file: 1200-013 (Elcos), 1200-013 (Safran Trusted 4d Inc.), 1200-013 (Orolia Global Services Ltd T/a Spectracom), 1200-013 (Leonardo Uk Ltd), 91923978 (Thales Sa).
2 possible matches (shared part number, not a government interchangeability claim): 5825-01-677-7764, 6645-01-694-3987. Verify interchangeability with system specifications before substitution.
Key specifications for 1200-013: Overall Height: 1.72 INCHES NOMINAL IN; Voltage in Volts and Current Type: 100.00 AC AND 240.00 AC; Overall Length: 14.00 INCHES NOMINAL IN; Overall Width: 16.75 INCHES NOMINAL IN. 3 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.