The Attenuator,fixed, cataloged under National Stock Number 5985-01-068-9959, 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 Dba Electronic Systems. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-068-9959 |
| Primary Part Number | 989C380H02 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Electronic Systems |
| Status | ACTIVE |
| Frequency Range | 0.000 GIGAHERTZ MINIMUM AND 0.000 GIGAHERTZ MINIMUM AND 4.500 GIGAHERTZ MAXIMUM4.500 GIGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Overall Diameter | 0.341 INCHES MINIMUM AND 0.341 INCHES MINIMUM AND 0.360 INCHES MAXIMUM0.360 INCHES MAXIMUM IN |
| Voltage Standing Wave Ratio | 1.251.25 |
| Input Impedance Rating in Ohms | 50.050.0 |
| Mounting Method | CONNECTORCONNECTOR |
| Rf Signal Attenuation in Decibels | 6.06.0 |
| Attenuation Accuracy in Decibels | -0.50 TO 0.50-0.50 TO 0.50 |
| Surface Treatment | PASSIVATE BODY |
| Operating Temp Range | -55.0 TO 85.0 CELSIUS-55.0 TO 85.0 CELSIUS DEGC |
| Application Design | TRANSMISSION LINETRANSMISSION LINE |
| Material | STEEL CORROSION RESISTING BODY |
| Power Rating | 1.0 WATTS AVERAGE AND 1.0 WATTS AVERAGE AND 1.0 KILOWATTS PEAK1.0 KILOWATTS PEAK |
| Terminal Type and Quantity | 2 CONNECTOR2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.050.0 |
| Coaxial Connector Series Designation | SMASMA |
| 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 |
|---|---|
| 989C380H02 | Northrop Grumman Systems Corporation Dba Electronic Systems (USA) |
| Reference | Meaning |
|---|---|
| A380ES | 5/9 Secondary reference Caes Systems Llc |
| 3MS-6 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5985-01-068-9959 is a Attenuator,fixed, manufactured by Northrop Grumman Systems Corporation Dba Electronic Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-068-9959 has 1 manufacturer part number on file: 989C380H02 (Northrop Grumman Systems Corporation Dba Electronic Systems).
Key specifications for 989C380H02: Frequency Range: 0.000 GIGAHERTZ MINIMUM AND 0.000 GIGAHERTZ MINIMUM AND 4.500 GIGAHERTZ MAXIMUM4.500 GIGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Overall Diameter: 0.341 INCHES MINIMUM AND 0.341 INCHES MINIMUM AND 0.360 INCHES MAXIMUM0.360 INCHES MAXIMUM IN; Voltage Standing Wave Ratio: 1.251.25. 16 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 5985-01-068-9959 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.