# NSN 5985-01-257-9840: Attenuator, Fixed

NSN 5985-01-257-9840 (also written 5985012579840; NIIN 01-257-9840) is an attenuator, fixed in Federal Supply Class 5985, Antennas, Waveguides, and Related Equipment. 13 manufacturer part numbers from 9 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5985-01-257-9840 (5985012579840)
- NIIN: 01-257-9840 (012579840)
- Item name: ATTENUATOR,FIXED
- Federal Supply Class: [FSC 5985 Antennas, Waveguides, and Related Equipment](https://nsnexplorer.com/fsc/5985/)
- Federal Supply Group: [FSG 59](https://nsnexplorer.com/group/59/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-13)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAFS | APPLICATION DESIGN | TRANSMISSION LINE |
| AAQL | BODY STYLE | — |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 1.330 |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 0.312 |
| AGAV | END ITEM IDENTIFICATION | WSD: AIRCRAFT, EAGLE F-15; F-15 SUPPORT EQUIPMENT |
| AHTW | VOLTAGE STANDING WAVE RATIO | 1.10 AND 1.25 |
| AHTY | INPUT IMPEDANCE RATING IN OHMS | 50.0 |
| AHTZ | OUTPUT IMPEDANCE RATING IN OHMS | 50.0 |
| AHUC | COAXIAL CONNECTOR SERIES DESIGNATION | SMA |
| AJDB | POWER RATING | WATTS AVERAGE 2.0 AND KILOWATTS PEAK 1.0 |
| AJDK | RF SIGNAL ATTENUATION IN DECIBELS | 10.0 |
| AKNK | VOLTAGE STANDING WAVE RATIO FREQUENCY RANGE | GIGAHERTZ 0.0 TO 8.0 AND GIGAHERTZ 12.4 TO 26.5 |
| ASYN | ATTENUATION ACCURACY IN DECIBELS | -0.30 TO 0.30 |
| ASZN | CONNECTION TYPE PER FUNCTION | FEMALE INPUT AND MALE OUTPUT |
| AXGY | MOUNTING METHOD | CONNECTOR |
| BBHS | TERMINAL TYPE AND QUANTITY | CONNECTOR 2 |
| BNGR | FREQUENCY RANGE | HERTZ MINIMUM 0.000 AND GIGAHERTZ MAXIMUM 26.500 |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| FEAT | SPECIAL FEATURES | ATTENUATION ACCURACY IS PORM 0.3 TO 12.4 GHZ AND PORM 0.5 FROM 12.4 TO 26.5 GHZ; WEAPON SYSTEM ESSENTIAL |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 037-003883-003 | 26916 | NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP DIV MULTIPLE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 26A-10-026 | 64671 | SPECTRUM CONTROL, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 8493C | 52708 | KEYSIGHT TECHNOLOGIES, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 8493C OPT010 | 52708 | KEYSIGHT TECHNOLOGIES, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 8493C OPT010 | Z0ST5 | KEYSIGHT TECHNOLOGIES PTY LTD KEYSIGHT TECHNOLOGIES AUSTRALIA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 8493C OPT010 | Z9N17 | AGILENT TECHNOLOGIES AUSTRALIA PTY LTD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 8493C OPT010 | ZA037 | HEWLETT-PACKARD ENTERPRISE T/A HEWLETT PACKARD AUSTRALIA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 8493C-010 | 1LQK8 | KEYSIGHT TECHNOLOGIES, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 8493C-010 | 7ZXR5 | KEYSIGHT TECHNOLOGIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 8493C010 | 28480 | HEWLETT-PACKARD COMPANY DBA HP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HP8493C010 | 1LQK8 | KEYSIGHT TECHNOLOGIES, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HP8493C010 | 28480 | HEWLETT-PACKARD COMPANY DBA HP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HP8493C010 | 7ZXR5 | KEYSIGHT TECHNOLOGIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7M5-27-T-0635 | 9 | 2026-10-23 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5985012579840&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5985012579840&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5985012579840
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/5985-01-257-9840/
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