# NSN 5985-01-221-8255: Attenuator, Fixed

NSN 5985-01-221-8255 (also written 5985012218255; NIIN 01-221-8255) is an attenuator, fixed in Federal Supply Class 5985, Antennas, Waveguides, and Related Equipment. 7 manufacturer part numbers from 6 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5985-01-221-8255 (5985012218255)
- NIIN: 01-221-8255 (012218255)
- 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 2026-11-08)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAFS | APPLICATION DESIGN | TRANSMISSION LINE |
| AAQL | BODY STYLE | — |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 0.750 |
| ABKW | OVERALL HEIGHT | INCHES MAXIMUM 0.150 |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 0.515 |
| AFGA | OPERATING TEMP RANGE | CELSIUS -55.0 TO 150.0 |
| AGAV | END ITEM IDENTIFICATION | NSN: 5895-00-222-4224 COMMUNICATIONS SYSTEM; WSD: ARC-182 AIRBORNE RADIO, COMMUNICATION; HELICOPTER, RH-53; HELICOPTER, CARRIER BASED ASW, SH-60F; AIRCRAFT, VIKING S-3B; HELICOPTER, CH-53A/D/E; AIRCRAFT, HAWKEYE E-2C; AIRCRAFT, INTRUDER A-6E; HELICOPTER, SEA KNIGHT H-46; HELICOPTER, LAMPS MARK III, SH-60B |
| AHTW | VOLTAGE STANDING WAVE RATIO | 1.15 AND 1.35 AND 1.50 |
| AHTY | INPUT IMPEDANCE RATING IN OHMS | 50.0 |
| AHTZ | OUTPUT IMPEDANCE RATING IN OHMS | 50.0 |
| AJDB | POWER RATING | WATTS AVERAGE 20.0 |
| AJDK | RF SIGNAL ATTENUATION IN DECIBELS | 3.0 |
| AKNK | VOLTAGE STANDING WAVE RATIO FREQUENCY RANGE | GIGAHERTZ 0.0 TO 1.0 AND GIGAHERTZ 1.0 TO 2.5 AND GIGAHERTZ 2.5 TO 4.0 |
| ASYN | ATTENUATION ACCURACY IN DECIBELS | -0.50 TO 0.50 |
| AXGY | MOUNTING METHOD | TERMINAL |
| BBHS | TERMINAL TYPE AND QUANTITY | RIBBON 2 AND SURFACE CONTACT 1 |
| BNGR | FREQUENCY RANGE | HERTZ MINIMUM 0.000 AND GIGAHERTZ MAXIMUM 4.000 |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| FEAT | SPECIAL FEATURES | WEAPON SYSTEM ESSENTIAL |
| MATT | MATERIAL | BODY BERYLLIUM COPPER (USE CUB000) |
| PMLC | PRECIOUS MATERIAL AND LOCATION | GOLD TER-INALS |
| PRMT | PRECIOUS MATERIAL | GOLD |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 054504-0003 | 65597 | THALES USA, INC. DIV AIR MOBILITY SOLUTIONS ("AMS") | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 379-0564-030 | 13499 | ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5403 | 24602 | SMITHS INTERCONNECT AMERICAS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 935-000-30B | 95077 | SV MICROWAVE, INC. DIV SV MICROWAVE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A200-003-20 | 61162 | JFW INDUSTRIES INCORPORATED DBA JFW INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A3RW11-3 | 64537 | CAES SYSTEMS LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| PPA-20-3 | 64537 | CAES SYSTEMS LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7M5-27-T-2364 | 51 | 2026-11-16 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5985012218255&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5985012218255&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5985012218255
- 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/5985-01-221-8255/
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