The Attenuator,variable, cataloged under National Stock Number 5985-01-183-6523, 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 Northrop Grumman Systems Corporation. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-183-6523 |
| Primary Part Number | GA810DR1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.5 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 1 FREE STANDING BASE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Frequency Range | 0.000 HERTZ MINIMUM AND 1.500 GIGAHERTZ MAXIMUM |
| Body Style | IRREGULAR |
| Adjustment Device Type and Quantity | 2 KNOB W/DIAL |
| Overall Attenuation Range in Decibels | +0.0 TO 80.0 |
| Voltage Standing Wave Ratio | 1.30 AND 1.40 AND 1.50 |
| Overall Attenuation Accuracy in Decibels | -1.00 TO 1.00 |
| Attenuation Per Step in Decibels | 1.0 |
| Attenuation Variation Method | STEPPED |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 1.0 WATTS AVERAGE |
| Step Position Quantity | 80 |
| Coaxial Connector Series Designation | SMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 393161-A-F-C | Coaxial Components Corp. Dba Coaxial Components Corp (USA) |
| GA810DR1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| BMA-580 SMA | 5/9 Secondary reference Trilithic, Inc. |
| BMA-570SMAJACK | 5/9 Secondary reference Trilithic, Inc. |
| BMA-35110 SMA | 5/9 Secondary reference Trilithic, Inc. |
NSN 5985-01-183-6523 is a Attenuator,variable, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-183-6523 has 2 manufacturer part numbers on file: 393161-A-F-C (Coaxial Components Corp. Dba Coaxial Components Corp), GA810DR1 (Northrop Grumman Systems Corporation).
Key specifications for GA810DR1: Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.5; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 1 FREE STANDING BASE; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT. 17 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 5985-01-183-6523 has DEMIL Code B. 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.