The Switch,waveguide, cataloged under National Stock Number 5985-00-409-3231, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Switch,waveguide |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Microlab/fxr Llc (CAGE 00929); Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (CAGE 01456) |
| Parameter | Value |
|---|---|
| NSN | 5985-00-409-3231 |
| Primary Part Number | RN-B25 |
| Item Name | Switch,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microlab/fxr Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| RN-B25 | Microlab/fxr Llc (USA) |
| MDL62SR179-3 | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 14095A | 3/9 Design control — primary reference Solitron Devices, Inc. |
| 153-135-0006 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5985-00-409-3231 is a Switch,waveguide, manufactured by Microlab/fxr Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-409-3231 has 2 manufacturer part numbers on file: RN-B25 (Microlab/fxr Llc), MDL62SR179-3 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-312-4046. Verify interchangeability with system specifications before substitution.
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 5985-00-409-3231 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.