The Switch,waveguide, cataloged under National Stock Number 5985-01-152-9022, 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 Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-152-9022 |
| Primary Part Number | 28SR16-4-28 |
| Item Name | Switch,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc |
| Status | ACTIVE |
| Waveguide Flange Type | COVER |
| Switching Time | 100.0 MILLISECONDS MS |
| Switch Return Mechanism Type | FAIL-SAFE |
| Coupling Position Quantity | 4 |
| Operating Temp Range | +0.0 TO 75.0 CELSIUS DEGC |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) |
| Terminal Type and Quantity | 4 RECTANGULAR FLANGE AND 1 CONNECTOR, RECEPTACLE |
| 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 |
|---|---|
| 28SR16-4-28 | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 112864-01 | 3/9 Design control — primary reference Boeing Company, the |
NSN 5985-01-152-9022 is a Switch,waveguide, manufactured by Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-152-9022 has 1 manufacturer part number on file: 28SR16-4-28 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc).
Key specifications for 28SR16-4-28: Waveguide Flange Type: COVER; Switching Time: 100.0 MILLISECONDS MS; Overall Height: 1.870 INCHES NOMINAL IN; Switch Return Mechanism Type: FAIL-SAFE. 7 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.