The Switch,waveguide, cataloged under National Stock Number 5985-00-784-3121, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-784-3121 |
| Item Name | Switch,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Switching Time | 1.0 SECONDS |
| Actuator Voltage in Volts | 28.0 NOMINAL |
| Switch Return Mechanism Type | FAIL-SAFE |
| Coupling Position Quantity | 3 |
| Nominal Thread Size | 0.164 INCHES FLANGE CONNECTION FACILITY HOLE IN |
| Nominal Thread Size | 0.132 INCHES MOUNTING FACILITY HOLE IN |
| Minimum Crosstalk Rating in Decibels | 55.0 SINGLE |
| Insertion Loss in Decibels | 0.15 SINGLE |
| Rf Power Handling Capability | 5.0 KILOWATTS PEAK SINGLE |
| Flange Connecting Facility and Quantity | 12 THREADED HOLE(S) |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) MOUNTING FACILITY HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) FLANGE CONNECTION FACILITY HOLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 91561 | 5/9 Secondary reference Solitron Devices, Inc. |
| 2534662 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5985-00-784-3121 is a Switch,waveguide, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4130-01-116-9698, 5365-01-154-8505. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-00-784-3121: Switching Time: 1.0 SECONDS; Actuator Voltage in Volts: 28.0 NOMINAL; Switch Return Mechanism Type: FAIL-SAFE; Coupling Position Quantity: 3. 12 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 5985-00-784-3121 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.