The Dummy Load,electrical, cataloged under National Stock Number 5985-01-250-1239, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microlab/fxr Llc. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-250-1239 |
| Primary Part Number | WL-B68 |
| Item Name | Dummy Load,electrical |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microlab/fxr Llc |
| Status | ACTIVE |
| Coolant Chamber Pressure | 00.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES |
| Body Diameter | 3.000 INCHES MAXIMUM IN |
| Operating Position | ALL POSITIONS |
| Termination Type | WAVEGUIDE FLANGE |
| Voltage Standing Wave Ratio | 1.10 |
| Waveguide Flange Designation | UG-135/U |
| Cooling System Coolant Flow Rate | 0.75 GALLONS PER MINUTE |
| Style Designator | WAVEGUIDE MOUNTED |
| Cooling Method | FORCED LIQUID |
| Impedance Rating in Ohms | 50.0 NOMINAL |
| Discharge Connection Thread Location | INTERNAL |
| Frequency Range Rating | +8.200 TO 12.400 GIGAHERTZ |
| Intake Connection Thread Location | INTERNAL |
| Voltage Standing Wave Ratio Frequency Range | +8.200 TO 12.400 GIGAHERTZ |
| Input Coolant Temp | 105.0 FAHRENHEIT DEGF |
| Special Handling Feature | RADIOACTIVE |
| Power Rating | 1.000 KILOWATTS AVERAGE AND 0.350 MEGAWATTS PEAK |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| WL-B68 PRIMARY | Microlab/fxr Llc (USA) |
| Reference | Meaning |
|---|---|
| 7490A20H01 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Electronic Systems |
NSN 5985-01-250-1239 is a Dummy Load,electrical, manufactured by Microlab/fxr Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-250-1239 has 1 manufacturer part number on file: WL-B68 (Microlab/fxr Llc).
Key specifications for WL-B68: Coolant Chamber Pressure: 00.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES; Body Diameter: 3.000 INCHES MAXIMUM IN; Operating Position: ALL POSITIONS; Termination Type: WAVEGUIDE FLANGE. 17 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.
NSN 5985-01-250-1239 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.