The Attenuator,variable, cataloged under National Stock Number 5985-01-199-9100, 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 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-199-9100 |
| Primary Part Number | GA810DU1 |
| 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 | 3.0 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Frequency Range | 0.000 HERTZ MINIMUM AND 1.300 GIGAHERTZ MAXIMUM |
| Body Style | IRREGULAR |
| Mounting Facility Pattern | TWO POSITION DIAGONAL |
| Adjustment Device Type and Quantity | 1 ELECTRONIC, PROGRAMMABLE |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.594 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 127.0 |
| Voltage Standing Wave Ratio | 1.20 AND 1.50 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Attenuation Variation Method | CONTINUOUS |
| Mounting Thread Quantity | 40 PER INCH |
| Mounting Facility Nominal Screw Thread Diameter | 0.112 INCHES IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 0.437 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE AND 8 PIN |
| Coaxial Connector Series Designation | SMA |
| 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 |
|---|---|
| GA810DU1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| PA-5010-5.0V-50MA | 5/9 Secondary reference Trilithic, Inc. |
NSN 5985-01-199-9100 is a Attenuator,variable, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-199-9100 has 1 manufacturer part number on file: GA810DU1 (Northrop Grumman Systems Corporation).
Key specifications for GA810DU1: Insertion Loss at Minimum Attenuation in Maximum Decibels: 3.0; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 2 THREADED HOLE(S); Overall Height: 1.000 INCHES NOMINAL IN. 18 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.