The Meter,electrical Frequency, cataloged under National Stock Number 6625-00-239-7405, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-239-7405 |
| Item Name | Meter,electrical Frequency |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| Register Quantity | 1 |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 2.344 INCHES NOMINAL IN |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Indicator Type | DIAL W/POINTER |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 2.562 INCHES NOMINAL IN |
| Movement Type | VIBRATING REED |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Overall Diameter | 3.250 INCHES NOMINAL IN |
| Resonant Reed Quantity | 5 |
| Power Source | EXTERNAL |
| Style Designator | ROUND FLUSH MTG |
| Mounting Hole Diameter | 0.125 INCHES NOMINAL IN |
| Features Provided | ZERO ADJUSTER |
| Mounting Bolt Circle Diameter | 1.438 INCHES NOMINAL IN |
| Special Markings | 3600 RPM SLOW FAST ABOVE SCALE; MOTOR SPEED BELOW SCALE RPM |
| Frequency Response Range | +59.000 TO 61.000 HERTZ |
| Measurement Range | +59.0 TO 61.0 HERTZ SINGLE INDICATOR SINGLE RANGE |
| 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 | X |
| Reference | Meaning |
|---|---|
| ES12781 | C/1 Advisory reference — outside the item-of-supply concept States Electronics Corp Bludworth Marine Div |
| ES12781ISSUE1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6625-00-239-7405 is a Meter,electrical Frequency, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
Key specifications for 6625-00-239-7405: Register Quantity: 1; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 2.344 INCHES NOMINAL IN; FSC Application Data: TEST SET,ELECT. EQUIP.. 22 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.