The Indicator,electrical Tachometer, cataloged under National Stock Number 6620-00-514-5035, is classified within Federal Supply Class 6620 (Engine Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6620-00-514-5035 |
| Item Name | Indicator,electrical Tachometer |
| FSC / FSG | 6620 / 66 — Engine Instruments |
| Status | ACTIVE |
| Individual Marking | MARKED 1; 2 |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| FSC Application Data | 1. ENGINE INSTRUMENT,AIRCRAFT |
| Contact Type | PIN |
| Scale Marking | MAJOR GRADUATION AND MINOR GRADUATION |
| Current Type | AC |
| Electrical Connection Quantity | 2 |
| Mounting Stud Diameter | 0.170 INCHES NOMINAL IN |
| Electrical Connection Identifying Number | DESIGNED STD NO. AND10066-14S-1P |
| Accuracy Rating | 100.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE |
| Scale Range | -0.1 TO 4500.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE |
| Scale Marking Transparency | LUMINOUS |
| Contact Quantity | 3 |
| Features Provided | INTEGRAL SYNCHROSCOPE |
| Presentation Type | SYNCHRO MOTOR |
| Height | 3.250 INCHES NOMINAL IN |
| Depth | 5.000 INCHES NOMINAL IN |
| Width | 3.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 751CU4-02 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6620-00-514-5035 is a Indicator,electrical Tachometer, classified under FSC 6620, Engine Instruments. Status: active.
Key specifications for 6620-00-514-5035: Individual Marking: MARKED 1; 2; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); FSC Application Data: 1. ENGINE INSTRUMENT,AIRCRAFT; Contact Type: PIN. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.