The Ammeter, cataloged under National Stock Number 6625-00-781-5745, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-781-5745 |
| Primary Part Number | 7707590P42 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Installation Design | PANEL |
| Circuit Current for Which Designed | DC |
| Overall Diameter | 2.695 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Surface Treatment | CHROMATE AND ENAMEL SEMIGLOSS |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| FSC Application Data | ELEC,ELECT. PROPERTIES MEASURING AND TEST INSTRUMENTS |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Color | UNABLE TO DECODE |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Style Designator | ROUND FLUSH MTG |
| Furnished Items and Quantity | NUT 2; WASHER 5 |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Scale Division Quantity | 40 SINGLE INDICATOR SINGLE RANGE |
| Material | STEEL |
| Indicator Type | DIAL W/POINTER |
| Sensitivity Rating | 75.0 MILLIVOLTS |
| Special Markings | REAR OF CASE: SEALED DO NOT OPEN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Environmental Protection | SHOCK RESISTANT AND VIBRATION RESISTANT |
| Panel for Which Designed | MAGNETIC OR NONMAGNETIC |
| Meter Depth Behind Mounting Flange | 1.600 INCHES NOMINAL IN |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Power Source | EXTERNAL |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Circuit Construction Type | NONELECTRONIC |
| Circuit Attachment Method and Quantity | 2 SOLDER LUG AND 2 THREADED STUD |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Criticality Code | N |
| Unit of Issue | EA |
| SMR Code | JN |
| Weight | 0.0100 lbs |
| Cube | 0.0290 cu ft |
| Part Number | Manufacturer |
|---|---|
| 253600 | Metermaster Inc Metermod Div (USA) |
| 1921 | American Instrument Corp (USA) |
| 2521 | L3 Aviation Products, Inc. Dba L3 Technologies (USA) |
| 1921 | Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc (USA) |
| 265-612 | Jewell Instruments Llc (USA) |
| ADD | Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging (USA) |
| 253600 | Custom Metering Company Inc (USA) |
| 7707590P42 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 253600 | Solartron Electronics Inc Weston Instruments Div (USA) |
| 2521 | Lockheed Martin Corp (USA) |
NSN 6625-00-781-5745 is a Ammeter, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-00-781-5745 has 10 cross-referenced part numbers: 253600 (Metermaster Inc Metermod Div), 1921 (American Instrument Corp), 2521 (L3 Aviation Products, Inc. Dba L3 Technologies), 1921 (Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc), 265-612 (Jewell Instruments Llc) and 5 more.
There are 12 known substitutes for 6625-00-781-5745: 6625-00-010-6406, 6625-00-057-5534, 6625-00-080-7120 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 7707590P42: Installation Design: PANEL; Circuit Current for Which Designed: DC; Overall Diameter: 2.695 INCHES NOMINAL IN; Mounting Hole Diameter: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN. 30 total characteristics are documented in the Federal Logistics Information System.