The Calibrator,voltage, cataloged under National Stock Number 6625-00-005-1283, 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 Electro Scientific Industries Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6625-00-005-1283 |
| Primary Part Number | 721A |
| Item Name | Calibrator,voltage |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Electro Scientific Industries Inc |
| Status | ACTIVE |
| Supplementary Features | C/O 6625000716219 P/N RV722, 6625009925884 P/N LC875B, 6625001680415 P/N 801 AND TEST LEADS |
| Functional Description | CALIBRATION OF DC RATIO DEVICES SUCH AS DECADE VOLTAGE DIVIDERS, VOLTBOXES, POTENTIOMETERS, BRIDGE RATIO ARMS, AND UNIVERSAL RATIO SETS |
| 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 | JS |
| Weight | 6.5000 lbs |
| Cube | 1.2535 cu ft |
| Part Number | Manufacturer |
|---|---|
| 721A PRIMARY | Electro Scientific Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 721A | 5/9 Secondary reference Electro Scientific Industries Inc |
NSN 6625-00-005-1283 is a Calibrator,voltage, manufactured by Electro Scientific Industries Inc, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-00-005-1283 has 1 manufacturer part number on file: 721A (Electro Scientific Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 6130-00-445-6933. Verify interchangeability with system specifications before substitution.
Key specifications for 721A: Overall Height: 14.000 INCHES NOMINAL IN; Supplementary Features: C/O 6625000716219 P/N RV722, 6625009925884 P/N LC875B, 6625001680415 P/N 801 AND TEST LEADS; Overall Width: 19.500 INCHES NOMINAL IN; Special Features: MFG NAME DC RATIO CALIBRATION SYSTEM. 2 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.