The Meter,modulation, cataloged under National Stock Number 6625-00-649-4741, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 6625-00-649-4741 |
| Item Name | Meter,modulation |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 2.675 INCHES NOMINAL IN |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Circuit Attachment Method and Quantity | 2 SOLDER LUG |
| Meter Depth Behind Mounting Flange | 1.063 INCHES NOMINAL IN |
| Circuit Current for Which Designed | DC |
| Scale Selection Method | TERMINAL |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES |
| Overall Diameter | 3.500 INCHES NOMINAL IN |
| Power Source | EXTERNAL |
| Style Designator | ROUND FLUSH MTG |
| Mounting Hole Diameter | 0.140 INCHES NOMINAL IN |
| Features Provided | ZERO ADJUSTER |
| Scale Division Quantity | 15 SINGLE INDICATOR FIRST RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Mounting Bolt Circle Diameter | 3.160 INCHES NOMINAL IN |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR ALL RANGES |
| Surface Treatment | ENAMEL |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR ALL RANGES |
| Material | STEEL |
| Sensitivity Rating | 100.0 MICROAMPERES |
| Scale Graduation Type | NONLINEAR SINGLE INDICATOR SECOND RANGE |
| Scale Graduation Type | LINEAR SINGLE INDICATOR FIRST RANGE |
| Measurement Range | +0.0 TO 100.0 PERCENT MODULATION SINGLE INDICATOR SECOND RANGE |
| 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 | JN |
| Reference | Meaning |
|---|---|
| 300580 | 5/9 Secondary reference Agilent Technologies Inc. Div Power Products Site |
| TM175 | 5/9 Secondary reference Telectro Systems Corp |
| 1120-0323 | 3/9 Design control — primary reference Agilent Technologies Inc. Div Power Products Site |
NSN 6625-00-649-4741 is a Meter,modulation, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 6615-00-887-0107, 4030-01-187-5842, 4730-01-303-1262. Verify interchangeability with system specifications before substitution.
Key specifications for 6625-00-649-4741: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 2.675 INCHES NOMINAL IN; FSC Application Data: TEST SET,ELECT. EQUIP.; Indicator Type: DIAL W/POINTER. 28 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.