The Switch,waveguide, cataloged under National Stock Number 5985-00-795-1176, 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. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5985-00-795-1176 |
| Primary Part Number | RP-A40 |
| Item Name | Switch,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microlab/fxr Llc |
| Status | ACTIVE |
| Waveguide Flange Type | CHOKE |
| Actuator Voltage in Volts | 27.0 NOMINAL |
| Actuator Current Type and Rating in Amps | 1.0 DC NOMINAL |
| Coupling Position Quantity | 3 |
| Nominal Thread Size | 0.164 INCHES FLANGE CONNECTION FACILITY HOLE IN |
| Nominal Thread Size | 0.164 INCHES MOUNTING FACILITY HOLE IN |
| Minimum Crosstalk Rating in Decibels | 80.0 SINGLE |
| Switch Type | TRANSFER |
| Insertion Loss in Decibels | 0.20 SINGLE |
| Actuator Operating Method | RELAY |
| Rf Power Handling Capability | 400.0 WATTS AVERAGE SINGLE |
| 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 A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| RP-A40 | Microlab/fxr Llc (USA) |
| RAM137A | Waveline Inc (USA) |
| Reference | Meaning |
|---|---|
| 29HAB | 5/9 Secondary reference Viking Technologies, Ltd. |
| 575R553H01 | 3/2 Design control — primary reference U.S. Government activity |
| SA605U | 5/2 Secondary reference U.S. Government activity |
| C14272 | 5/9 Secondary reference Microlab/fxr Llc |
NSN 5985-00-795-1176 is a Switch,waveguide, manufactured by Microlab/fxr Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-795-1176 has 2 manufacturer part numbers on file: RP-A40 (Microlab/fxr Llc), RAM137A (Waveline Inc).
1 possible match (shared part number, not a government interchangeability claim): 6625-00-802-9855. Verify interchangeability with system specifications before substitution.
Key specifications for RP-A40: Waveguide Flange Type: CHOKE; Overall Height: 2.780 INCHES NOMINAL IN; Actuator Voltage in Volts: 27.0 NOMINAL; Overall Length: 6.200 INCHES NOMINAL IN. 13 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.