The Dummy Load,electrical, cataloged under National Stock Number 5985-01-123-0637, 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 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-123-0637 |
| Primary Part Number | WL-A99 |
| Item Name | Dummy Load,electrical |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microlab/fxr Llc |
| Status | ACTIVE |
| Operating Position | ALL POSITIONS |
| Termination Type | WAVEGUIDE FLANGE |
| Voltage Standing Wave Ratio | 1.60 |
| Waveguide Flange Designation | UG135/U |
| Body Width | 1.812 INCHES NOMINAL IN |
| Body Height | 2.062 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Style Designator | WAVEGUIDE MOUNTED |
| Cooling Method | SELF-COOLED |
| Power Rating | 50.000 WATTS AVERAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| WL-A99 | Microlab/fxr Llc (USA) |
| 927076-002B | Frontgrade Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10134395 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 452581A | 5/9 Secondary reference U.S. Government activity |
| 927076-2B | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-123-0637 is a Dummy Load,electrical, manufactured by Microlab/fxr Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-123-0637 has 2 manufacturer part numbers on file: WL-A99 (Microlab/fxr Llc), 927076-002B (Frontgrade Technologies Inc.).
Key specifications for WL-A99: Operating Position: ALL POSITIONS; Termination Type: WAVEGUIDE FLANGE; Voltage Standing Wave Ratio: 1.60; Waveguide Flange Designation: UG135/U. 10 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 5985-01-123-0637 has DEMIL Code Q. 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.