The Ammeter, cataloged under National Stock Number 6625-01-074-4776, 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 Phaostron Instrument and Electronic Company. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-074-4776 |
| Primary Part Number | 631-18124 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Phaostron Instrument and Electronic Company |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 THREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 2.710 INCHES NOMINAL IN |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 2.360 INCHES NOMINAL IN |
| Circuit Current for Which Designed | DC |
| Overall Diameter | 3.487 INCHES NOMINAL IN |
| Style Designator | ROUND FLUSH MTG |
| Features Provided | ZERO ADJUSTER |
| Scale Division Quantity | 20 SINGLE INDICATOR SINGLE RANGE |
| Mounting Bolt Circle Diameter | 3.160 INCHES NOMINAL IN |
| Color | UNABLE TO DECODE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Sensitivity Rating | 600.0 AMPERES |
| Measurement Range | +0.0 TO 600.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE |
| Installation Design | PANEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | JN |
| Weight | 0.9200 lbs |
| Cube | 0.0570 cu ft |
| Part Number | Manufacturer |
|---|---|
| 631-18124 | Phaostron Instrument and Electronic Company (USA) |
| Reference | Meaning |
|---|---|
| 201967 | 3/9 Design control — primary reference Sierra Technologies Inc Garden City Div |
NSN 6625-01-074-4776 is a Ammeter, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-074-4776 has 1 manufacturer part number on file: 631-18124 (Phaostron Instrument and Electronic Company).
Key specifications for 631-18124: Mounting Facility Type and Quantity: 3 THREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 2.710 INCHES NOMINAL IN; Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE; Circuit Attachment Method and Quantity: 2 THREADED STUD. 16 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.
NSN 6625-01-074-4776 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.