The Attenuator,fixed, cataloged under National Stock Number 5985-01-025-7285, 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 Smiths Interconnect Americas, Inc.. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-025-7285 |
| Primary Part Number | 4401 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Smiths Interconnect Americas, Inc. |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Frequency Range | 0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM18.000 GIGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Overall Diameter | 0.312 INCHES NOMINAL0.312 INCHES NOMINAL IN |
| Precious Material | GOLD |
| Voltage Standing Wave Ratio | 1.15 AND 1.15 AND 1.25 AND 1.25 AND 1.50 AND 1.50 AND 1.801.80 |
| Input Impedance Rating in Ohms | 50.050.0 |
| Mounting Method | CONNECTORCONNECTOR |
| Rf Signal Attenuation in Decibels | 1.01.0 |
| Surface Treatment | PASSIVATE BODY |
| Precious Material and Location | BODY SURFACES GOLD |
| Connection Type Per Function | FEMALE INPUT AND FEMALE INPUT AND MALE OUTPUTMALE OUTPUT |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS-55.0 TO 125.0 CELSIUS DEGC |
| Voltage Standing Wave Ratio Frequency Range | +0.0 TO 4.0 GIGAHERTZ AND +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 12.0 GIGAHERTZ AND +4.0 TO 12.0 GIGAHERTZ AND +12.0 TO 15.0 GIGAHERTZ AND +12.0 TO 15.0 GIGAHERTZ AND +15.0 TO 18.0 GIGAHERTZ+15.0 TO 18.0 GIGAHERTZ |
| Application Design | TRANSMISSION LINETRANSMISSION LINE |
| Material | STEEL CORROSION RESISTING BODY |
| Power Rating | 2.0 WATTS AVERAGE2.0 WATTS AVERAGE |
| Terminal Type and Quantity | 2 CONNECTOR2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.050.0 |
| Coaxial Connector Series Designation | SMASMA |
| 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 |
|---|---|
| MDC7065-1 | Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc (USA) |
| 4401 PRIMARY | Smiths Interconnect Americas, Inc. (USA) |
| KCII/1449 | Koehlke Components Inc (USA) |
| Reference | Meaning |
|---|---|
| EMC4401 | 5/9 Secondary reference Smiths Interconnect Americas, Inc. |
| 4401 | C/1 Advisory reference — outside the item-of-supply concept Cinch Connectivity Solutions Inc |
NSN 5985-01-025-7285 is a Attenuator,fixed, manufactured by Smiths Interconnect Americas, Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-025-7285 has 3 manufacturer part numbers on file: MDC7065-1 (Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc), 4401 (Smiths Interconnect Americas, Inc.), KCII/1449 (Koehlke Components Inc).
Key specifications for 4401: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Frequency Range: 0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM18.000 GIGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Overall Diameter: 0.312 INCHES NOMINAL0.312 INCHES NOMINAL IN. 20 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 5985-01-025-7285 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.