The Ammeter, cataloged under National Stock Number 6625-01-013-8557, 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 29 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-013-8557 |
| Primary Part Number | 621-16677 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Phaostron Instrument and Electronic Company |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Power Source | EXTERNAL |
| Overall Diameter | 2.695 INCHES MAXIMUM IN |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Scale Selection Method | TERMINAL |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Meter Depth Behind Mounting Flange | 1.170 INCHES NOMINAL IN |
| Panel for Which Designed | NONMAGNETIC |
| Scale Division Quantity | 50 SINGLE INDICATOR SINGLE RANGE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Installation Design | PANEL |
| Circuit Attachment Method and Quantity | 2 SOLDER LUG AND 2 THREADED STUD |
| Features Provided | ZERO ADJUSTER |
| Material | PLASTIC |
| Meter Body Diameter Behind Mounting Flange | 2.150 INCHES NOMINAL IN |
| Indicator Type | DIAL W/POINTER |
| Color | UNABLE TO DECODE |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Style Designator | ROUND FLUSH MTG |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Special Test Features | COMPLIES WITH MIL-M-10304 |
| Circuit Current for Which Designed | DC |
| Mounting Bolt Circle Diameter | 2.440 INCHES NOMINAL IN |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Mounting Hole Diameter | 0.125 INCHES NOMINAL IN |
| Dielectric Withstanding Voltage in Volts | 3000.0 |
| Circuit Construction Type | NONELECTRONIC |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Unit of Issue | EA |
| SMR Code | Y |
NSN 6625-01-013-8557 is a Ammeter, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-01-013-8557 has 2 cross-referenced part numbers: 621-16677 (Phaostron Instrument and Electronic Company), 900340-2 (Raytheon Company Dba Raytheon).
There is 1 known substitute for 6625-01-013-8557: 5935-00-553-2563. Verify interchangeability with system specifications before substitution.
Key specifications for 621-16677: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Power Source: EXTERNAL; Overall Diameter: 2.695 INCHES MAXIMUM IN; Pointer Color: BLACK SINGLE INDICATOR SINGLE RANGE. 30 total characteristics are documented in the Federal Logistics Information System.