The Attenuator,fixed, cataloged under National Stock Number 5985-01-231-4255, 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 Cinch Connectivity Solutions Inc. Government technical data includes 21 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-231-4255 |
| Primary Part Number | ATT-0290-06-086-02 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Cinch Connectivity Solutions Inc |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Frequency Range | 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Attenuation Accuracy Reference Frequency | 18.0 GIGAHERTZ |
| Overall Diameter | 0.361 INCHES NOMINAL IN |
| Precious Material | GOLD |
| Voltage Standing Wave Ratio | 1.10 AND 1.15 AND 1.30 AND 1.70 |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Method | CONNECTOR |
| Rf Signal Attenuation in Decibels | 6.0 |
| Attenuation Accuracy in Decibels | -1.50 TO 1.50 |
| Surface Treatment | PASSIVATE BODY |
| Precious Material and Location | C0NTACT SURFACES GOLD |
| Operating Temp Range | -55.0 TO 150.0 CELSIUS DEGC |
| Voltage Standing Wave Ratio Frequency Range | +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +8.0 TO 12.0 GIGAHERTZ AND +12.0 TO 18.0 GIGAHERTZ |
| Application Design | TRANSMISSION LINE |
| Material | STEEL CORROSION RESISTING BODY |
| Power Rating | 1.0 WATTS AVERAGE |
| Terminal Type and Quantity | 2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.0 |
| Coaxial Connector Series Designation | SMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ATT-0290-06-086-02 PRIMARY | Cinch Connectivity Solutions Inc (USA) |
| Reference | Meaning |
|---|---|
| 172245-006 | 7/2 Vendor item drawing reference U.S. Government activity |
| 8708855006 | 5/9 Secondary reference Smiths Interconnect Americas, Inc. |
| 2082-6340-06 | 5/9 Secondary reference U.S. Government activity |
| 2082-6340-06 | 5/9 Secondary reference Xma Corporation |
NSN 5985-01-231-4255 is a Attenuator,fixed, manufactured by Cinch Connectivity Solutions Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-231-4255 has 1 manufacturer part number on file: ATT-0290-06-086-02 (Cinch Connectivity Solutions Inc).
Key specifications for ATT-0290-06-086-02: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Frequency Range: 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Attenuation Accuracy Reference Frequency: 18.0 GIGAHERTZ. 21 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 5985-01-231-4255 has DEMIL Code Q. 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.