The Ammeter, cataloged under National Stock Number 6625-00-838-4928, 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 Miscorp Div. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-838-4928 |
| Primary Part Number | M1791 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Metermaster Inc Miscorp Div |
| Status | ACTIVE |
| Measurement Range | +0.0 TO 5.0 MILLIAMPERES, AC SINGLE INDICATOR FIRST RANGE |
| Circuit Attachment Method and Quantity | 2 BINDING POST |
| Color | UNABLE TO DECODE |
| Meter Body Diameter Behind Mounting Flange | 2.750 INCHES NOMINAL IN |
| Measurement Range | +0.0 TO 50.0 MILLIAMPERES, AC SINGLE INDICATOR SECOND RANGE |
| Meter Depth Behind Mounting Flange | 1.040 INCHES NOMINAL IN |
| Installation Design | PANEL |
| Mounting Arrangement Style | FOUR HOLE/STUD RECTANGULAR/SQUARE |
| Material | PLASTIC |
| Style Designator | RECTANGULAR FLUSH MTG |
| Scale Division Quantity | 50 SINGLE INDICATOR SINGLE RANGE |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Sensitivity Rating | 100.0 MILLIVOLTS |
| Accuracy in Percent | -3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Circuit Current for Which Designed | AC |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.240 INCHES NOMINAL IN |
| Scale Selection Method | TERMINAL |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.240 INCHES NOMINAL IN |
| Features Provided | MAGNETIC SHIELD |
| Mounting Facility Type and Quantity | 4 FLANGE |
| Measurement Range | +0.0 TO 5.0 MILLIAMPERES, AC SINGLE INDICATOR FIRST RANGE |
| Circuit Attachment Method and Quantity | 2 BINDING POST |
| Color | UNABLE TO DECODE |
| Meter Body Diameter Behind Mounting Flange | 2.750 INCHES NOMINAL IN |
| Measurement Range | +0.0 TO 50.0 MILLIAMPERES, AC SINGLE INDICATOR SECOND RANGE |
| Meter Depth Behind Mounting Flange | 1.040 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Criticality Code | Q |
| Unit of Issue | EA |
| SMR Code | JN |
| Weight | 0.7000 lbs |
| Cube | 0.0472 cu ft |
NSN 6625-00-838-4928 is a Ammeter, manufactured by Metermaster Inc Miscorp Div, classified under FSC 6625 (No Item Name Available). Status: active.
NSN 6625-00-838-4928 has 5 cross-referenced part numbers: M1791 (Metermaster Inc Miscorp Div), PA8661 (Pa Instruments Inc), A57 (Sigma Instruments Inc), A57REVD (Sigma Instruments Inc), HA57 (Sigma Instruments Inc).
There are 10 known substitutes for 6625-00-838-4928: 3030-00-127-4637, 3455-00-194-0515, 5985-00-194-9740 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for M1791: Overall Height: 3.120 INCHES NOMINAL IN; Measurement Range: +0.0 TO 5.0 MILLIAMPERES, AC SINGLE INDICATOR FIRST RANGE; Circuit Attachment Method and Quantity: 2 BINDING POST; Color: UNABLE TO DECODE. 30 total characteristics are documented in the Federal Logistics Information System.