The Ammeter, cataloged under National Stock Number 6625-00-668-5643, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 22 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-668-5643 |
| Primary Part Number | 1JC428ITEM11 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 THREADED STUD(S) |
| Meter Body Diameter Behind Mounting Flange | 3.960 INCHES NOMINAL IN |
| Mounting Arrangement Style | FOUR HOLE/STUD RECTANGULAR/SQUARE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 3.812 INCHES NOMINAL IN |
| Circuit Current for Which Designed | DC |
| Accuracy in Percent | -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.375 INCHES NOMINAL IN |
| Mounting Stud Diameter | 0.250 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR FLUSH MTG |
| Scale Division Quantity | 20 SINGLE INDICATOR SINGLE RANGE |
| Color | UNABLE TO DECODE |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 3.375 INCHES NOMINAL IN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Sensitivity Rating | 20.0 MILLIVOLTS |
| Furnished Items and Quantity | EXTERNAL SHUNT 1 |
| Installation Design | PANEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | X |
| Weight | 3.6600 lbs |
| Cube | 0.1620 cu ft |
| Part Number | Manufacturer |
|---|---|
| 1JC428ITEM11 PRIMARY | Westinghouse Electric Corp (USA) |
| 50J557PC17 PRIMARY | Westinghouse Electric Corp (USA) |
| 1JC428ITEM9 PRIMARY | Westinghouse Electric Corp (USA) |
| 1JH178PC5-7 | Naval Inventory Control Point Mechanicsburg (USA) |
| 20B5333ITEM13 PRIMARY | Westinghouse Electric Corp (USA) |
| 1JC437ITEM14 | Naval Inventory Control Point Mechanicsburg (USA) |
| 31A1662SUB7ITEM4 PRIMARY | Westinghouse Electric Corp (USA) |
| 20B5333ITEM13 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1JH35PC47 | Naval Inventory Control Point Mechanicsburg (USA) |
| 51J380PC17 PRIMARY | Westinghouse Electric Corp (USA) |
| 1JH2536PC11-13 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1JH2470PC10-12 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1JC428ITEM9 | Naval Inventory Control Point Mechanicsburg (USA) |
| 50J557PC14 PRIMARY | Westinghouse Electric Corp (USA) |
| 50J557PC14-17 | Naval Inventory Control Point Mechanicsburg (USA) |
| 51J380PC15 PRIMARY | Westinghouse Electric Corp (USA) |
| 1JC86SUB3ITEM12 PRIMARY | Westinghouse Electric Corp (USA) |
| 1JC86SUB3ITEM14 PRIMARY | Westinghouse Electric Corp (USA) |
| 50J557PC4-12 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1542181 PRIMARY | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 1957418 | 3/2 Design control — primary reference U.S. Government activity |
| 1957418 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| 6201-3000977ITEM4 | 3/2 Design control — primary reference U.S. Government activity |
| 716B029A09 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| 93123-6201-909545PC14 | 3/2 Design control — primary reference U.S. Government activity |
| 3107450ITEM14 | 3/2 Design control — primary reference U.S. Government activity |
| 3107450ITEM12 | 3/2 Design control — primary reference U.S. Government activity |
| 93123-6201-909545PC17 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6625-00-668-5643 is a Ammeter, manufactured by Westinghouse Electric Corp, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-00-668-5643 has 22 manufacturer part numbers on file: 1JC428ITEM11 (Westinghouse Electric Corp), 50J557PC17 (Westinghouse Electric Corp), 1JC428ITEM9 (Westinghouse Electric Corp), 1JH178PC5-7 (Naval Inventory Control Point Mechanicsburg), 20B5333ITEM13 (Westinghouse Electric Corp) and 17 more.
1 possible match (shared part number, not a government interchangeability claim): 5940-01-160-7574. Verify interchangeability with system specifications before substitution.
Key specifications for 1JC428ITEM11: Mounting Facility Type and Quantity: 4 THREADED STUD(S); Meter Body Diameter Behind Mounting Flange: 3.960 INCHES NOMINAL IN; Overall Height: 4.688 INCHES NOMINAL IN; Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE. 17 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.