The Ammeter, cataloged under National Stock Number 6625-00-785-6253, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Rolls-Royce Solutions America Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 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 | 6625-00-785-6253 |
| Primary Part Number | 5120442 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Sensitivity Rating | 50.0 MILLIVOLTS |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Features Provided | MAGNETIC SHIELD AND ZERO ADJUSTER |
| Measurement Range | +0.0 TO 100.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Circuit Attachment Method and Quantity | 2 SOLDER LUG |
| Special Markings | RED BAND FROM 20 AMP TO 100 AMP |
| Material | STEEL |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Meter Body Diameter Behind Mounting Flange | 2.210 INCHES NOMINAL IN |
| Mounting Bolt Circle Diameter | 2.440 INCHES NOMINAL IN |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Style Designator | ROUND FLUSH MTG |
| Overall Diameter | 2.695 INCHES NOMINAL IN |
| Movement Type | MOVING IRON VANE |
| Indicator Type | DIAL W/POINTER |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Installation Design | PANEL |
| Color | UNABLE TO DECODE |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Environmental Protection | DUST RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT |
| Scale Division Quantity | 20 SINGLE INDICATOR SINGLE RANGE |
| Panel for Which Designed | MAGNETIC OR NONMAGNETIC |
| Furnished Items and Quantity | MTG HARDWARE INCLUDED |
| Dielectric Withstanding Voltage in Volts | 2000.0 |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Power Source | EXTERNAL |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Mounting Hole Diameter | 0.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Criticality Code | Q |
| Unit of Issue | EA |
| SMR Code | JN |
| Weight | 0.8600 lbs |
| Cube | 0.0420 cu ft |
| Part Number | Manufacturer |
|---|---|
| 1622 | Jewell Instruments Llc (USA) |
| 1521-145085 | Metermaster Inc Metermod Div (USA) |
| 5120442 | General Motors Llc Dba General Motors Llc (USA) |
| 5120442 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
| 621-E312 | Phaostron Instrument and Electronic Company (USA) |
| 5120442 | General Motors Corp (USA) |
| 200-16 | Jewell Instruments Llc (USA) |
| 1521-145085 | Solartron Electronics Inc Weston Instruments Div (USA) |
| MMI-7533 | Metermaster Inc Metermod Div (USA) |
NSN 6625-00-785-6253 is a Ammeter, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-00-785-6253 has 9 cross-referenced part numbers: 1622 (Jewell Instruments Llc), 1521-145085 (Metermaster Inc Metermod Div), 5120442 (General Motors Llc Dba General Motors Llc), 5120442 (Rolls-Royce Solutions America Inc), 621-E312 (Phaostron Instrument and Electronic Company) and 4 more.
There is 1 known substitute for 6625-00-785-6253: 6625-00-138-5846. Verify interchangeability with system specifications before substitution.
Key specifications for 5120442: Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE; Sensitivity Rating: 50.0 MILLIVOLTS; Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE; Features Provided: MAGNETIC SHIELD AND ZERO ADJUSTER. 30 total characteristics are documented in the Federal Logistics Information System.