The Attenuator,fixed, cataloged under National Stock Number 5985-01-265-0338, 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 Scientific Components Corp Dba Mini-Circuits. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-265-0338 |
| Primary Part Number | CAT-20 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Scientific Components Corp Dba Mini-Circuits |
| Status | ACTIVE |
| Frequency Range | 0.000 HERTZ MINIMUM AND 1500.000 MEGAHERTZ MAXIMUM |
| Frequency Sensitivity Attenuation in Decibels | 0.04 |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Attenuation Accuracy Reference Frequency | 1000.0 MEGAHERTZ |
| Overall Diameter | 0.580 INCHES NOMINAL IN |
| Voltage Standing Wave Ratio | 1.30 AND 1.50 |
| Input Impedance Rating in Ohms | 50.0 |
| Rf Signal Attenuation in Decibels | 20.0 |
| Attenuation Accuracy in Decibels | -0.80 TO 0.80 |
| Surface Treatment | NICKEL BODY |
| Connection Type Per Function | FEMALE INPUT AND MALE OUTPUT |
| Voltage Standing Wave Ratio Frequency Range | +0.0 TO 1500.0 MEGAHERTZ |
| Application Design | TRANSMISSION LINE |
| Material | COPPER ALLOY BODY |
| Unpackaged Unit Weight | 40.0 GRAMS G |
| Terminal Type and Quantity | 2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.0 |
| Coaxial Connector Series Designation | BNC |
| 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 |
|---|---|
| MDC89251-20 | Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc (USA) |
| CAT-20 PRIMARY | Scientific Components Corp Dba Mini-Circuits (USA) |
NSN 5985-01-265-0338 is a Attenuator,fixed, manufactured by Scientific Components Corp Dba Mini-Circuits, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-265-0338 has 2 manufacturer part numbers on file: MDC89251-20 (Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc), CAT-20 (Scientific Components Corp Dba Mini-Circuits).
Key specifications for CAT-20: Frequency Range: 0.000 HERTZ MINIMUM AND 1500.000 MEGAHERTZ MAXIMUM; Frequency Sensitivity Attenuation in Decibels: 0.04; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Attenuation Accuracy Reference Frequency: 1000.0 MEGAHERTZ. 18 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 5985-01-265-0338 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.