The Ammeter, cataloged under National Stock Number 6625-00-423-6738, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-423-6738 |
| Primary Part Number | 391960-1 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| Status | ACTIVE |
| Mounting Bolt Circle Diameter | 2.440 INCHES NOMINAL IN |
| Indicator Type | DIAL W/POINTER |
| Surface Treatment | CADMIUM |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Circuit Construction Type | NONELECTRONIC |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Mounting Hole Diameter | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Special Markings | SEALED DO NOT OPEN ON REAR OF METER; PLUS SIGN OVER POSITIVE YERMINAL |
| Color | UNABLE TO DECODE |
| Installation Design | PANEL |
| Meter Body Diameter Behind Mounting Flange | 2.150 INCHES NOMINAL IN |
| Meter Depth Behind Mounting Flange | 1.170 INCHES NOMINAL IN |
| Movement Type | MOVING IRON VANE |
| Circuit Current for Which Designed | DC |
| Scale Division Quantity | 20 SINGLE INDICATOR SINGLE RANGE |
| Style Designator | ROUND FLUSH MTG |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Mounting Facility Type and Quantity | 3 SCREW AND 3 UNTHREADED HOLE(S) |
| Power Source | EXTERNAL |
| Features Provided | MAGNETIC SHIELD AND ZERO ADJUSTER |
| Measurement Range | +0.0 TO 1.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Sensitivity Rating | 10.0 MILLIAMPERES |
| Environmental Protection | SHOCK RESISTANT AND VIBRATION RESISTANT |
| Overall Diameter | 2.695 INCHES MAXIMUM IN |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Unit of Issue | EA |
| SMR Code | Z |
| Weight | 0.8700 lbs |
| Cube | 0.0085 cu ft |
| Part Number | Manufacturer |
|---|---|
| 621 | Phaostron Instrument and Electronic Company (USA) |
| 621-15085 | Phaostron Instrument and Electronic Company (USA) |
| 391960-1 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
| 8309 | Phaostron Instrument and Electronic Company (USA) |
NSN 6625-00-423-6738 is a Ammeter, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-00-423-6738 has 4 cross-referenced part numbers: 621 (Phaostron Instrument and Electronic Company), 621-15085 (Phaostron Instrument and Electronic Company), 391960-1 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products), 8309 (Phaostron Instrument and Electronic Company).
There are 10 known substitutes for 6625-00-423-6738: 6625-00-106-0645, 6625-00-332-6211, 5998-01-659-8063 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 391960-1: Mounting Bolt Circle Diameter: 2.440 INCHES NOMINAL IN; Indicator Type: DIAL W/POINTER; Surface Treatment: CADMIUM; Nuclear Hardness Critical Feature: NONHARDENED. 30 total characteristics are documented in the Federal Logistics Information System.