The Meter,electrical Frequency, cataloged under National Stock Number 6625-00-987-5595, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Metermaster Inc. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-987-5595 |
| Primary Part Number | EF091 |
| Item Name | Meter,electrical Frequency |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Metermaster Inc |
| Status | ACTIVE |
| Meter Body Diameter Behind Mounting Flange | 2.060 INCHES NOMINAL IN |
| Environmental Protection | AIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT |
| Meter Depth Behind Mounting Flange | 1.375 INCHES NOMINAL IN |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Mounting Arrangement Style | FOUR HOLE/STUD RECTANGULAR/SQUARE |
| Sensitivity Rating | 40.0 DECIBELS |
| Scale Selection Method | TERMINAL |
| Installation Design | PANEL |
| Mounting Hole Diameter | 0.170 INCHES NOMINAL IN |
| Frequency Rating | 400.0 HERTZ NOMINAL |
| Pointer Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Scale Division Quantity | 80 SINGLE INDICATOR SINGLE RANGE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Special Markings | ON BACK,SEALED DO NOT OPEN |
| Color | UNABLE TO DECODE |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Frequency Response Range | +360.000 TO 440.000 HERTZ |
| Indicator Type | DIAL W/POINTER |
| Measurement Range | +360.0 TO 440.0 HERTZ SINGLE INDICATOR SINGLE RANGE |
| Features Provided | MAGNETIC SHIELD AND ZERO ADJUSTER |
| Scale Graduation Type | LINEAR SINGLE INDICATOR SINGLE RANGE |
| Mounting Facility Type and Quantity | 4 SCREW AND 4 UNTHREADED HOLE(S) |
| FSC Application Data | TEST SET,ELECT. EQUIP. |
| Nuclear Hardness Critical Feature | NONHARDENED |
| Style Designator | RECTANGULAR FLUSH MTG |
| Special Test Features | COMPLIES WITH MIL-M-10304 |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Power Source | EXTERNAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Unit of Issue | EA |
| SMR Code | Y |
| Weight | 0.0100 lbs |
| Cube | 0.0010 cu ft |
| Part Number | Manufacturer |
|---|---|
| EF091 | Metermaster Inc (USA) |
| 233-30 | Jewell Instruments Llc (USA) |
| MODEL254 | General Electric Supply Co Div of General Electric Co (USA) |
| 4-016 | Electro Switch Corp. Dba Arga Controls a Unit of Electro Switch Div Arga Controls a Unit of Electo Switch Corp. (USA) |
| EF091 | Holt Bros (USA) |
NSN 6625-00-987-5595 is a Meter,electrical Frequency, manufactured by Metermaster Inc, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-00-987-5595 has 5 cross-referenced part numbers: EF091 (Metermaster Inc), 233-30 (Jewell Instruments Llc), MODEL254 (General Electric Supply Co Div of General Electric Co), 4-016 (Electro Switch Corp. Dba Arga Controls a Unit of Electro Switch Div Arga Controls a Unit of Electo Switch Corp.), EF091 (Holt Bros).
There are 6 known substitutes for 6625-00-987-5595: 5998-01-032-8482, 7025-01-166-3213, 5961-00-944-9524 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for EF091: Meter Body Diameter Behind Mounting Flange: 2.060 INCHES NOMINAL IN; Environmental Protection: AIRTIGHT AND DUST RESISTANT AND FUNGUS RESISTANT AND HEAT RESISTANT AND HUMIDITY RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT AND WATER RESISTANT; Meter Depth Behind Mounting Flange: 1.375 INCHES NOMINAL IN; Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE. 30 total characteristics are documented in the Federal Logistics Information System.