The Phasemeter, cataloged under National Stock Number 6625-01-057-1817, 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 Telephonics Corp/prd Instruments. Government technical data includes 26 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6625-01-057-1817 |
| Primary Part Number | 38754 |
| Item Name | Phasemeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Telephonics Corp/prd Instruments |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 2.203 INCHES NOMINAL IN |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | TWO HOLE/STUD |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 1.311 INCHES NOMINAL IN |
| Circuit Current for Which Designed | DC |
| Accuracy in Percent | -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES |
| Style Designator | RECTANGULAR FLUSH MTG |
| Mounting Hole Diameter | 0.138 INCHES NOMINAL IN |
| Features Provided | ZERO ADJUSTER |
| Distance Between Mounting Facility Centers | 3.500 INCHES NOMINAL IN |
| Scale Division Quantity | 60 SINGLE INDICATOR FIRST RANGE |
| Scale Division Quantity | 72 SINGLE INDICATOR SECOND RANGE |
| Color | UNABLE TO DECODE |
| Pointer Color | BLACK SINGLE INDICATOR ALL RANGES |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR ALL RANGES |
| Special Markings | - B LAGS AND + B LEADS COLORED RED |
| Material | PLASTIC |
| Scale Graduation Type | LINEAR SINGLE INDICATOR ALL RANGES |
| Measurement Range | -18.0 TO 18.0 DEGREES, PHASE ANGLE SINGLE INDICATOR SECOND RANGE |
| Measurement Range | -6.0 TO 6.0 DEGREES, PHASE ANGLE SINGLE INDICATOR FIRST RANGE |
| Furnished Items and Quantity | NUT 2 |
| Nuclear Hardness Critical Feature | NONHARDENED |
| 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 | Y |
| Weight | 0.1000 lbs |
| Cube | 0.0100 cu ft |
| Part Number | Manufacturer |
|---|---|
| 38754 PRIMARY | Telephonics Corp/prd Instruments (USA) |
| Reference | Meaning |
|---|---|
| 420-R | 5/1 Secondary reference Triplett (bluffton) Corporation Dba Lfe Instruments |
| 38754 | 5/9 Secondary reference Peraton Inc |
NSN 6625-01-057-1817 is a Phasemeter, manufactured by Telephonics Corp/prd Instruments, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-057-1817 has 1 manufacturer part number on file: 38754 (Telephonics Corp/prd Instruments).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-107-1740. Verify interchangeability with system specifications before substitution.
Key specifications for 38754: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 2.203 INCHES NOMINAL IN; Overall Height: 2.970 INCHES NOMINAL IN; FSC Application Data: TEST SET,ELECT. EQUIP.. 26 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.