The Ammeter, cataloged under National Stock Number 6625-01-040-7657, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Phaostron Instrument and Electronic Company. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-040-7657 |
| Primary Part Number | 637-17053 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Phaostron Instrument and Electronic Company |
| Status | ACTIVE |
| Circuit Current for Which Designed | AC |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Installation Design | PANEL |
| Furnished Items and Quantity | MTG HARDWARE INCLUDED |
| Power Source | EXTERNAL |
| Meter Body Diameter Behind Mounting Flange | 2.800 INCHES MAXIMUM IN |
| Features Provided | ZERO ADJUSTER |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Meter Depth Behind Mounting Flange | 1.660 INCHES MAXIMUM IN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Circuit Construction Type | NONELECTRONIC |
| Special Test Features | CONFORMS TO MIL-M-10304 |
| Circuit Attachment Method and Quantity | 2 SOLDER LUG AND 2 THREADED STUD |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Color | UNABLE TO DECODE |
| Material | STEEL |
| Style Designator | ROUND FLUSH MTG |
| Indicator Type | DIAL W/POINTER |
| Scale Graduation Type | NONLINEAR SINGLE INDICATOR SINGLE RANGE |
| Measurement Range | +0.0 TO 100.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Environmental Protection | SHOCK RESISTANT AND VIBRATION RESISTANT |
| Mounting Facility Type and Quantity | 3 SCREW AND 3 UNTHREADED HOLE(S) |
| Overall Diameter | 3.510 INCHES MAXIMUM IN |
| Dielectric Withstanding Voltage in Volts | 3000.0 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Criticality Code | N |
| Unit of Issue | EA |
| SMR Code | JN |
| Weight | 0.9600 lbs |
| Cube | 0.0579 cu ft |
NSN 6625-01-040-7657 is a Ammeter, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-01-040-7657 has 2 cross-referenced part numbers: 637-17053 (Phaostron Instrument and Electronic Company), 71000 (U M C Electronics Co).
There are 11 known substitutes for 6625-01-040-7657: 6670-00-003-1926, 5935-00-204-6434, 3540-00-223-8589 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 637-17053: Circuit Current for Which Designed: AC; Movement Suspension Method: JEWEL PIVOT BASE; Installation Design: PANEL; Furnished Items and Quantity: MTG HARDWARE INCLUDED. 30 total characteristics are documented in the Federal Logistics Information System.