The Ammeter, cataloged under National Stock Number 6625-00-187-1788, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Jewell Instruments Llc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-187-1788 |
| Primary Part Number | HM3 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Jewell Instruments Llc |
| Status | ACTIVE |
| Power Source | EXTERNAL |
| Circuit Construction Type | NONELECTRONIC |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Circuit Attachment Method and Quantity | 2 SOLDER LUG |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Meter Body Diameter Behind Mounting Flange | 2.675 INCHES NOMINAL IN |
| Overall Diameter | 3.500 INCHES NOMINAL IN |
| Panel for Which Designed | NONMAGNETIC |
| Mounting Bolt Circle Diameter | 3.160 INCHES NOMINAL IN |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Style Designator | ROUND FLUSH MTG |
| Measurement Range | -150.0 TO 150.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE |
| Sensitivity Rating | 150.0 MILLIVOLTS |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Scale Division Quantity | 30 SINGLE INDICATOR SINGLE RANGE |
| Installation Design | PANEL |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Material | PLASTIC |
| Color | UNABLE TO DECODE |
| Mounting Hole Diameter | 0.150 INCHES NOMINAL IN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Meter Depth Behind Mounting Flange | 1.063 INCHES NOMINAL IN |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Features Provided | ZERO ADJUSTER |
| Indicator Type | DIAL W/POINTER |
| Circuit Current for Which Designed | DC |
| Power Source | EXTERNAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Criticality Code | N |
| Unit of Issue | EA |
| SMR Code | JN |
| Weight | 0.0300 lbs |
| Cube | 0.0330 cu ft |
| Part Number | Manufacturer |
|---|---|
| HM3 | Jewell Instruments Llc (USA) |
NSN 6625-00-187-1788 is a Ammeter, manufactured by Jewell Instruments Llc, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-00-187-1788 has 1 cross-referenced part number: HM3 (Jewell Instruments Llc).
There are 12 known substitutes for 6625-00-187-1788: 6625-00-088-9106, 6625-00-255-5806, 6625-00-649-4962 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for HM3: Power Source: EXTERNAL; Circuit Construction Type: NONELECTRONIC; Movement Suspension Method: JEWEL PIVOT BASE; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S). 30 total characteristics are documented in the Federal Logistics Information System.