The Attenuator,fixed, cataloged under National Stock Number 5985-01-199-5185, 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 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-199-5185 |
| Primary Part Number | ATT0263-01-037-02 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Cinch Connectivity Solutions Inc |
| Status | ACTIVE |
| Frequency Range | 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Overall Diameter | 0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Method | CONNECTOR |
| Rf Signal Attenuation in Decibels | 1.0 |
| Surface Treatment | PASSIVATE BODY |
| Operating Temp Range | -50.0 TO 105.0 CELSIUS DEGC |
| Application Design | TRANSMISSION LINE |
| Material | STEEL CORROSION RESISTING BODY |
| Power Rating | 2.0 WATTS AVERAGE AND 200.0 WATTS PEAK |
| Terminal Type and Quantity | 2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.0 |
| Coaxial Connector Series Designation | SMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2139904G001 | L3harris Technologies, Inc. (USA) |
| ATT0263-01-037-02 PRIMARY | Cinch Connectivity Solutions Inc (USA) |
| Reference | Meaning |
|---|---|
| 26431-1 | 3/2 Design control — primary reference U.S. Government activity |
| 2082-4312-01 | 5/9 Secondary reference Xma Corporation |
| 2082-4312-01 | 5/9 Secondary reference U.S. Government activity |
| 263-01-037 | 5/9 Secondary reference Cinch Connectivity Solutions Inc |
NSN 5985-01-199-5185 is a Attenuator,fixed, manufactured by Cinch Connectivity Solutions Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-199-5185 has 2 manufacturer part numbers on file: 2139904G001 (L3harris Technologies, Inc.), ATT0263-01-037-02 (Cinch Connectivity Solutions Inc).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-382-6757. Verify interchangeability with system specifications before substitution.
Key specifications for ATT0263-01-037-02: Frequency Range: 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Overall Diameter: 0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN; Input Impedance Rating in Ohms: 50.0. 14 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 5985-01-199-5185 has DEMIL Code D. 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.