The Ammeter, cataloged under National Stock Number 6625-00-553-1577, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Triplett (bluffton) Corporation Dba Lfe Instruments. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6625-00-553-1577 |
| Primary Part Number | 321T |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — No Item Name Available |
| Manufacturer | Triplett (bluffton) Corporation Dba Lfe Instruments |
| Status | CANCELLED |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Installation Design | PANEL |
| Mounting Hole Diameter | 0.156 INCHES NOMINAL IN |
| Sensitivity Rating | 50.0 MILLIVOLTS |
| Measurement Range | +0.0 TO 1.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE |
| Meter Body Diameter Behind Mounting Flange | 2.750 INCHES NOMINAL IN |
| Circuit Attachment Method and Quantity | 2 BINDING POST |
| Style Designator | ROUND FLUSH MTG |
| Mounting Facility Type and Quantity | 3 FLANGE |
| Overall Diameter | 3.500 INCHES NOMINAL IN |
| Dial Scale Marking Color | BLACK SINGLE INDICATOR SINGLE RANGE |
| Indicator Type | DIAL W/POINTER |
| Scale Division Quantity | 50 SINGLE INDICATOR SINGLE RANGE |
| Color | UNABLE TO DECODE |
| Material | PLASTIC |
| Scale Selection Method | TERMINAL |
| Meter Depth Behind Mounting Flange | 0.970 INCHES NOMINAL IN |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Circuit Current for Which Designed | DC |
| Mounting Arrangement Style | THREE HOLE/STUD BOLT CIRCLE |
| Mounting Bolt Circle Diameter | 3.160 INCHES NOMINAL IN |
| Accuracy in Percent | -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| Installation Design | PANEL |
| Mounting Hole Diameter | 0.156 INCHES NOMINAL IN |
| Sensitivity Rating | 50.0 MILLIVOLTS |
| Measurement Range | +0.0 TO 1.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE |
| Meter Body Diameter Behind Mounting Flange | 2.750 INCHES NOMINAL IN |
| Circuit Attachment Method and Quantity | 2 BINDING POST |
| Style Designator | ROUND FLUSH MTG |
| Acquisition Status | CANCELLED |
| Successor | 6625-00-153-9058 (136301-087) |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 321T | Triplett (bluffton) Corporation Dba Lfe Instruments (USA) |
| 53RN | Jewell Instruments Llc (USA) |
| Q72708-5 | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
| Q72708-5 | Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA) |
| 301 | Solartron Electronics Inc Weston Instruments Div (USA) |
| 160432 | Solartron Electronics Inc Weston Instruments Div (USA) |
| 301-0-1ADC | Solartron Electronics Inc Weston Instruments Div (USA) |
NSN 6625-00-553-1577 is a Ammeter, manufactured by Triplett (bluffton) Corporation Dba Lfe Instruments, classified under FSC 6625 (No Item Name Available). Status: cancelled.
NSN 6625-00-553-1577 has 7 cross-referenced part numbers: 321T (Triplett (bluffton) Corporation Dba Lfe Instruments), 53RN (Jewell Instruments Llc), Q72708-5 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div), Q72708-5 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems), 301 (Solartron Electronics Inc Weston Instruments Div) and 2 more.
There are 12 known substitutes for 6625-00-553-1577: 6625-00-153-9058, 6625-00-433-4263, 6625-00-643-1792 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 321T: Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE; Installation Design: PANEL; Mounting Hole Diameter: 0.156 INCHES NOMINAL IN; Sensitivity Rating: 50.0 MILLIVOLTS. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 6625-00-553-1577 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.