The Switch,waveguide, cataloged under National Stock Number 5985-01-139-2179, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-139-2179 |
| Item Name | Switch,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Waveguide Flange Type | CHOKE |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| AMC0170 | Atlantic Microwave Corporation Div Cobham Electronic Systems (USA) |
| Reference | Meaning |
|---|---|
| 259445 | 1/3 Source control — Government-approved source U.S. Government activity |
| 10134431 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| MA8844-CS001 | 3/3 Design control — primary reference U.S. Government activity |
NSN 5985-01-139-2179 is a Switch,waveguide, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-139-2179 has 1 manufacturer part number on file: AMC0170 (Atlantic Microwave Corporation Div Cobham Electronic Systems).
Key specifications for 5985-01-139-2179: Waveguide Flange Type: CHOKE; Overall Height: 2.750 INCHES MAXIMUM IN; Overall Length: 1.250 INCHES MAXIMUM IN; Overall Width: 2.000 INCHES MAXIMUM IN. 3 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.