The Ammeter, cataloged under National Stock Number 6625-00-669-4842, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hughes Corp Div Weschler Electric. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-669-4842 |
| Primary Part Number | 1964840 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Hughes Corp Div Weschler Electric |
| Status | ACTIVE |
| Material | STEEL |
| Installation Design | PANEL |
| Accuracy in Percent | -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Surface Treatment | PAINT |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Mounting Facility Type and Quantity | 4 SCREW AND 4 UNTHREADED HOLE(S) |
| Environmental Protection | AIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Indicator Type | DIAL W/POINTER |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Scale Division Quantity | 50 SINGLE INDICATOR SINGLE RANGE |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Meter Body Diameter Behind Mounting Flange | 3.960 INCHES NOMINAL IN |
| Special Test Features | COMPLIES WITH MIL-M-10304 |
| Furnished Items and Quantity | NUT 8; LOCKWASHER 6; FLAT WASHER 1; SHUNT WIRE 1; SEAL 1 |
| Meter Depth Behind Mounting Flange | 1.562 INCHES NOMINAL IN |
| Measurement Range | -4.0 TO 4.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE |
| Features Provided | NONGLARE GLASS AND SHATTERPROOF GLASS AND ZERO ADJUSTER |
| Scale Selection Method | TERMINAL |
| Sensitivity Rating | 100.0 MILLIVOLTS |
| Circuit Current for Which Designed | DC |
| Movement Suspension Method | JEWEL PIVOT BASE |
| Power Source | EXTERNAL |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Dielectric Withstanding Voltage in Volts | 800.0 |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Circuit Construction Type | NONELECTRONIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Unit of Issue | EA |
| SMR Code | XF |
NSN 6625-00-669-4842 is a Ammeter, manufactured by Hughes Corp Div Weschler Electric, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-00-669-4842 has 5 cross-referenced part numbers: S1723330 (Westinghouse Electric Corp), KX-241 (Hughes Corp Div Weschler Electric), 1964840 (Hughes Corp Div Weschler Electric), S1723330 (Hughes Corp Div Weschler Electric), S1723330 (Westinghouse Electric Corp Control Business Unit).
There are 7 known substitutes for 6625-00-669-4842: 6625-01-097-2121, 6625-01-222-0052, 6625-01-222-0053 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1964840: Material: STEEL; Overall Width: 4.421 INCHES NOMINAL IN; Installation Design: PANEL; Accuracy in Percent: -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE. 30 total characteristics are documented in the Federal Logistics Information System.