The Ammeter, cataloged under National Stock Number 6625-00-649-5340, 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28 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 6625-00-649-5340 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| Circuit Construction Type | NONELECTRONIC |
| Mounting Facility Type and Quantity | 3 SCREW AND 3 UNTHREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 2.210 INCHES MAXIMUM 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 AND 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 1.600 INCHES MAXIMUM IN |
| Circuit Current for Which Designed | AC |
| Scale Selection Method | TERMINAL |
| Movement Type | MOVING IRON VANE |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Overall Diameter | 2.695 INCHES MAXIMUM IN |
| Panel for Which Designed | MAGNETIC |
| Dielectric Withstanding Voltage in Volts | 3000.0 |
| Power Source | EXTERNAL |
| Style Designator | ROUND FLUSH MTG |
| Mounting Hole Diameter | 0.125 INCHES NOMINAL IN |
| Features Provided | MAGNETIC SHIELD |
| Specification/standard Data | 81349-MIL-M-10304/8 GOVERNMENT SPECIFICATION |
| Scale Division Quantity | 30 SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Mounting Bolt Circle Diameter | 2.440 INCHES NOMINAL IN |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Surface Treatment | PAINT |
| Environmental Protection | AIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT |
| Frequency Rating | 60.0 HERTZ NOMINAL |
| 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 | Y |
| Weight | 0.5200 lbs |
| Cube | 0.0229 cu ft |
| Reference | Meaning |
|---|---|
| MR26W010RFAAR | 2/2 Government specification standardization U.S. Government activity |
| MIL-M-10304/8 | 5/9 Secondary reference U.S. Government activity |
| MIL-PRF-10304/8 | 4/1 Identification reference U.S. Government activity |
NSN 6625-00-649-5340 is a Ammeter, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
7 possible matches (shared part number, not a government interchangeability claim): 6625-00-649-5341, 6625-00-752-7822, 6625-00-752-8089. Verify interchangeability with system specifications before substitution.
Key specifications for 6625-00-649-5340: Circuit Construction Type: NONELECTRONIC; Mounting Facility Type and Quantity: 3 SCREW AND 3 UNTHREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 2.210 INCHES MAXIMUM IN; FSC Application Data: TEST SET,ELECT. EQUIP.. 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.