The Ammeter, cataloged under National Stock Number 6625-00-087-8257, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Joint Electronics Type Designation System. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-087-8257 |
| Primary Part Number | ME421U |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Joint Electronics Type Designation System |
| Status | CANCELLED |
| Circuit Current for Which Designed | AC |
| Features Provided | ZERO ADJUSTER |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Measurement Range | +0.0 TO 10.0 AMPERES, AC SINGLE INDICATOR FIRST RANGE |
| Measurement Range | +0.0 TO 500.0 AMPERES, AC SINGLE INDICATOR FIFTH RANGE |
| Accuracy in Percent | -3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | +0.0 TO 25.0 AMPERES, AC SINGLE INDICATOR SECOND RANGE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | +0.0 TO 1000.0 AMPERES, AC SINGLE INDICATOR SIXTH RANGE |
| Movement Type | MOVING IRON VANE |
| Sensitivity Rating | 65.0 MILLIVOLTS |
| Measurement Range | +0.0 TO 250.0 AMPERES, AC SINGLE INDICATOR FOURTH RANGE |
| Material | PLASTIC |
| Color | UNABLE TO DECODE |
| Style Designator | HOOK-ON |
| Measurement Range | +0.0 TO 100.0 AMPERES, AC SINGLE INDICATOR THIRD RANGE |
| Circuit Current for Which Designed | AC |
| Features Provided | ZERO ADJUSTER |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Measurement Range | +0.0 TO 10.0 AMPERES, AC SINGLE INDICATOR FIRST RANGE |
| Measurement Range | +0.0 TO 500.0 AMPERES, AC SINGLE INDICATOR FIFTH RANGE |
| Accuracy in Percent | -3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | +0.0 TO 25.0 AMPERES, AC SINGLE INDICATOR SECOND RANGE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | +0.0 TO 1000.0 AMPERES, AC SINGLE INDICATOR SIXTH RANGE |
| Acquisition Status | CANCELLED |
| Successor | 6625-01-075-9209 (SM-C-889062) |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Criticality Code | 00 |
| Unit of Issue | EA |
| SMR Code | VH |
| Weight | 0.0100 lbs |
| Cube | 0.0139 cu ft |
| Part Number | Manufacturer |
|---|---|
| 633TYPEA2 | Solartron Electronics Inc Weston Instruments Div (USA) |
| 633-2901002 | Solartron Electronics Inc Weston Instruments Div (USA) |
| ME421U PRIMARY | Joint Electronics Type Designation System (USA) |
| 633 | Solartron Electronics Inc Weston Instruments Div (USA) |
| 260921 | Solartron Electronics Inc Weston Instruments Div (USA) |
NSN 6625-00-087-8257 is a Ammeter, manufactured by Joint Electronics Type Designation System, classified under FSC 6625 (No Item Name Available). Status: cancelled.
NSN 6625-00-087-8257 has 5 cross-referenced part numbers: 633TYPEA2 (Solartron Electronics Inc Weston Instruments Div), 633-2901002 (Solartron Electronics Inc Weston Instruments Div), ME421U (Joint Electronics Type Designation System), 633 (Solartron Electronics Inc Weston Instruments Div), 260921 (Solartron Electronics Inc Weston Instruments Div).
There are 7 known substitutes for 6625-00-087-8257: 6625-01-075-9209, 6625-01-077-2834, 6625-01-271-9855 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for ME421U: Overall Length: 13.625 INCHES NOMINAL IN; Circuit Current for Which Designed: AC; Overall Width: 2.500 INCHES NOMINAL IN; Features Provided: ZERO ADJUSTER. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 6625-00-087-8257 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.