The Capacitor,variable,air Dielectri, cataloged under National Stock Number 5910-00-905-4745, is classified within Federal Supply Class 5910 (Capacitors) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Viking Technologies, Ltd.. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5910-00-905-4745 |
| Primary Part Number | 189-6-4 |
| Item Name | Capacitor,variable,air Dielectri |
| FSC / FSG | 5910 / 59 — Capacitors |
| Manufacturer | Viking Technologies, Ltd. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| Nonderated Voltage Rating and Type | 850.0 AC PEAK SINGLE SECTION |
| Inclosure Type | ENCASED |
| Temp Coefficient of Capacitance in Ppm Per Deg Celsius | 45.0 SINGLE SECTION |
| Body Style | PLATE-MESHING |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 0.297 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Terminal Length | 0.344 INCHES NOMINAL IN |
| Capacitance Range in Picofarads | +1.8 TO 13.0 SINGLE SECTION |
| Tolerance of Temp Coefficient in Ppm Per Deg Celsius | -15.0 TO 15.0 SINGLE SECTION |
| Unthreaded Mounting Hole Diameter | 0.067 INCHES NOMINAL IN |
| Tuning Characteristic | STRAIGHT LINE CAPACITY SINGLE SECTION |
| Adjustment Device Torque | 2.500 INCH-OUNCES MINIMUM AND 10.000 INCH-OUNCES MAXIMUM IN |
| Adjustment Device Drive Type and Quantity | 1 SLOTTED SCREW |
| Precious Material and Location | METAL SURFACES SILVER |
| Material | CERAMIC BASE |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG |
| Quality Factor at 25 Deg Celsius | 1500.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 189-0506-074 | Viking Technologies, Ltd. (USA) |
| 189-6-4 PRIMARY | Viking Technologies, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| 281-103 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company Div Rmd Strategic |
| 189-0006-004 | C/1 Advisory reference — outside the item-of-supply concept Viking Technologies, Ltd. |
| 189-0506-74 | 5/9 Secondary reference Viking Technologies, Ltd. |
| 281-0103-00 | 5/9 Secondary reference U.S. Government activity |
NSN 5910-00-905-4745 is a Capacitor,variable,air Dielectri, manufactured by Viking Technologies, Ltd., classified under FSC 5910, Capacitors. Status: active.
NSN 5910-00-905-4745 has 2 manufacturer part numbers on file: 189-0506-074 (Viking Technologies, Ltd.), 189-6-4 (Viking Technologies, Ltd.).
4 possible matches (shared part number, not a government interchangeability claim): 2540-01-181-1002, 6520-01-378-4846, 7510-01-451-1711. Verify interchangeability with system specifications before substitution.
Key specifications for 189-6-4: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Overall Height: 0.563 INCHES NOMINAL IN; Nonderated Voltage Rating and Type: 850.0 AC PEAK SINGLE SECTION; Inclosure Type: ENCASED. 18 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.