The Control,constant Frequency, cataloged under National Stock Number 6110-00-635-4658, is classified within Federal Supply Class 6110 (Electrical Control Equipment) of the Electric Wire, Power, and Distribution Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6110-00-635-4658 |
| Primary Part Number | 2154ALS |
| Item Name | Control,constant Frequency |
| FSC / FSG | 6110 / 61 — Electrical Control Equipment |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Maximum Overall Width | 16.500 INCHES IN |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Inclosure Type | ENCASED |
| Maintained Frequency | 60.000 HERTZ |
| Frequency Device Type | TUNING FORK |
| Maximum Overall Length | 19.625 INCHES IN |
| Maximum Overall Height | 10.000 INCHES IN |
| Mounting Method | BULKHEAD |
| Power Source | EXTERNAL |
| Terminal Location | BACK CORNER |
| Features Provided | INTERNAL ILLUMINATION AND WARNING INDICATOR |
| Terminal Type and Quantity | 8 SCREW |
| Surface Treatment | ENAMEL CASE |
| Maximum Voltage Rating in Volts | 115.0 AC |
| Indication Method | RECEIVING STROBOSCOPE AND RECEIVING SYNCHRONOUS CLOCK AND TRANSMITTING STROBOSCOPE AND TRANSMITTING SYNCHRONOUS CLOCK |
| Material | STEEL CASE |
| Intelligence Data Handling Capability | ELECTRICAL FREQUENCY RECEIVING AUTOMATIC AND ELECTRICAL FREQUENCY TRANSMITTING AUTOMATIC |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY FIELD CONTROL RHEOSTAT,2000 OHMS,100 WATT |
| Current Rating in Amps | 2.2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 2154ALS | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2154ALS | C/1 Advisory reference — outside the item-of-supply concept Dynalec Corporation |
| 2154ALS | 3/9 Design control — primary reference The Electric Tachometer Corp. |
NSN 6110-00-635-4658 is a Control,constant Frequency, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 6110, Electrical Control Equipment. Status: active.
NSN 6110-00-635-4658 has 1 manufacturer part number on file: 2154ALS (Naval Inventory Control Point Mechanicsburg).
Key specifications for 2154ALS: Maximum Overall Width: 16.500 INCHES IN; Phase: SINGLE; Frequency in Hertz: 60.0; Inclosure Type: ENCASED. 20 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.