The Voltage Standard, cataloged under National Stock Number 6625-00-438-9121, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hewlett-Packard Company Dba HP. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-438-9121 |
| Primary Part Number | 741B |
| Item Name | Voltage Standard |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Hewlett-Packard Company Dba HP |
| Status | ACTIVE |
| Phase | SINGLE |
| Warm-Up Time for Maximum Accuracy in Minutes | 60.0 |
| AC Voltage Rating | 115.0 VOLTS NOMINAL AND 230.0 VOLTS NOMINAL |
| Output Accuracy Rating in Percent | -0.001 TO 0.001 |
| Terminal Type | BANANA JACK |
| Unit Type | ENCASED |
| Unpackaged Unit Weight | 47.000 POUNDS LBS |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 1000.0 HERTZ MAXIMUM |
| Output Voltage Rating | 0.0 VOLTS MINIMUM AND 1000.0 VOLTS MAXIMUM |
| Electromotive Force Production Method | ELECTRONIC |
| Supplementary Features | HI-VOLTAGE DC STANDARD SOURCE; MEASURE POWER SUPPLY STABILITY; CALIBRATE PRECISION VOLTMETERS; DC STANDARD TRANSFER MEASUREMENTS; MEASURE ACCURATELY DC RESISTIVE DIVIDERS |
| Terminal Quantity | 4 |
| Functional Description | CALIBRATES DIGITAL VOLTMETERS, DIFFERENTIAL VOLTMETERS, POTENTIOMETERS, VOLTAGE DIVIDERS |
| Portability | PORTABLE |
| Phase | SINGLE |
| Warm-Up Time for Maximum Accuracy in Minutes | 60.0 |
| AC Voltage Rating | 115.0 VOLTS NOMINAL AND 230.0 VOLTS NOMINAL |
| Output Accuracy Rating in Percent | -0.001 TO 0.001 |
| Terminal Type | BANANA JACK |
| Unit Type | ENCASED |
| Unpackaged Unit Weight | 47.000 POUNDS LBS |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 1000.0 HERTZ MAXIMUM |
| Output Voltage Rating | 0.0 VOLTS MINIMUM AND 1000.0 VOLTS MAXIMUM |
| Acquisition Status | ACTIVE |
| Successor | 6625-01-448-4786 (701) |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Criticality Code | S |
| Unit of Issue | EA |
| SMR Code | VS |
| Part Number | Manufacturer |
|---|---|
| 741B | Hewlett-Packard Company Dba HP (USA) |
| 25-451637-1 | General Dynamics Mission Systems, Inc. (USA) |
| 741B | Keysight Technologies, Inc. (USA) |
| 741B | Keysight Technologies Inc (USA) |
NSN 6625-00-438-9121 is a Voltage Standard, manufactured by Hewlett-Packard Company Dba HP, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-00-438-9121 has 4 cross-referenced part numbers: 741B (Hewlett-Packard Company Dba HP), 25-451637-1 (General Dynamics Mission Systems, Inc.), 741B (Keysight Technologies, Inc.), 741B (Keysight Technologies Inc).
There are 4 known substitutes for 6625-00-438-9121: 6625-01-448-4786, 4310-00-119-3232, 4730-00-266-2425 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 741B: Overall Width: 16.750 INCHES NOMINAL IN; Phase: SINGLE; Warm-Up Time for Maximum Accuracy in Minutes: 60.0; AC Voltage Rating: 115.0 VOLTS NOMINAL AND 230.0 VOLTS NOMINAL. 30 total characteristics are documented in the Federal Logistics Information System.