The Ammeter, cataloged under National Stock Number 6625-01-034-0834, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Hickok Waekon Llc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-034-0834 |
| Primary Part Number | 790-397 |
| Item Name | Ammeter |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Hickok Waekon Llc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Meter Body Diameter Behind Mounting Flange | 3.750 INCHES NOMINAL IN |
| Mounting Arrangement Style | FOUR HOLE/STUD RECTANGULAR/SQUARE |
| Circuit Attachment Method and Quantity | 2 THREADED STUD |
| Meter Depth Behind Mounting Flange | 3.500 INCHES NOMINAL IN |
| Circuit Current for Which Designed | AC |
| Movement Type | MOVING COIL, PERMANENT MAGNET |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.375 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR FLUSH MTG |
| Scale Division Quantity | 10 SINGLE INDICATOR SINGLE RANGE |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 3.375 INCHES NOMINAL IN |
| Measurement Range | +0.0 TO 150.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE |
| 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 | JN |
| Weight | 2.5800 lbs |
| Cube | 0.0879 cu ft |
| Part Number | Manufacturer |
|---|---|
| 790-397 PRIMARY | Hickok Waekon Llc (USA) |
| Reference | Meaning |
|---|---|
| 4SE00520-1 | 5/9 Secondary reference Naval Air Warfare Center Aircraft Division Code 1.3.1 Bldg 562-1 |
NSN 6625-01-034-0834 is a Ammeter, manufactured by Hickok Waekon Llc, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-034-0834 has 1 manufacturer part number on file: 790-397 (Hickok Waekon Llc).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-733-2997. Verify interchangeability with system specifications before substitution.
Key specifications for 790-397: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Meter Body Diameter Behind Mounting Flange: 3.750 INCHES NOMINAL IN; Overall Height: 4.375 INCHES NOMINAL IN; Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE. 13 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.