The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-370-4900, 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 K&l Microwave Llc. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-370-4900 |
| Primary Part Number | RAH 910508-4 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | K&l Microwave Llc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Unthreaded Mounting Hole Diameter | 0.149 INCHES NOMINAL IN |
| Longest Vertical Distance Between Mounting Centers | 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY PATTERN IN |
| Connector End Design | FEMALE |
| Coupling Position Quantity | 4 |
| Terminal Type and Quantity | 4 PLUG, COAXIAL AND 1 CONNECTOR, RECEPTACLE |
| Coaxial Connector Series Designation | SMA |
| Longest Horizontal Distance Between Mounting Centers | 1.090 INCHES NOMINAL SINGLE MOUNTING FACILITY PATTERN IN |
| 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 |
|---|---|
| RAH 910508-4 PRIMARY | K&l Microwave Llc (USA) |
| TS-28-F-SMA-I-TTL-DE9P | Dow-Key Microwave Llc (USA) |
| Reference | Meaning |
|---|---|
| TS-28-F-SMA-I-TTL-DE9P | 5/9 Secondary reference K&l Microwave Llc |
NSN 5985-01-370-4900 is a Switch,radio Frequency Transmiss, manufactured by K&l Microwave Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-370-4900 has 2 manufacturer part numbers on file: RAH 910508-4 (K&l Microwave Llc), TS-28-F-SMA-I-TTL-DE9P (Dow-Key Microwave Llc).
Key specifications for RAH 910508-4: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Unthreaded Mounting Hole Diameter: 0.149 INCHES NOMINAL IN; Longest Vertical Distance Between Mounting Centers: 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY PATTERN IN; Connector End Design: FEMALE. 8 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.