The Attenuator,fixed, cataloged under National Stock Number 5985-01-286-1580, 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 Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div. Government technical data includes 22 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 | 5985-01-286-1580 |
| Primary Part Number | 6406856-2 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
| Status | ACTIVE |
| Mounting Hole/stud Quantity | 4 |
| Frequency Range | 0.000 HERTZ MINIMUM AND 1.500 GIGAHERTZ MAXIMUM |
| Body Style | RECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES |
| Attenuation Accuracy Reference Frequency | 1.0 GIGAHERTZ |
| Voltage Standing Wave Ratio | 1.40 |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Method | THREADED HOLE(S) |
| Rf Signal Attenuation in Decibels | 32.0 |
| Attenuation Accuracy in Decibels | -0.30 TO 0.50 |
| Center to Center Distance Between Mounting Facilities Parallel to Height | 1.500 INCHES NOMINAL IN |
| Body Length | 1.880 INCHES NOMINAL IN |
| Connection Type Per Function | FEMALE INPUT AND MALE OUTPUT |
| Operating Temp Range | +0.0 TO 70.0 CELSIUS DEGC |
| Voltage Standing Wave Ratio Frequency Range | +0.0 TO 1.5 GIGAHERTZ |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 0.600 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Material | STEEL BODY |
| Power Rating | 0.5 WATTS AVERAGE |
| Mounting Facility Thread Size and Series/type Designator | 2-56 UNIFIED NATIONAL COARSE (UNC) |
| Terminal Type and Quantity | 3 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 |
|---|---|
| 5P128SS26-TTL | Wavetek Rf Products, Inc (USA) |
| 6406856-2 PRIMARY | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
NSN 5985-01-286-1580 is a Attenuator,fixed, manufactured by Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-286-1580 has 2 manufacturer part numbers on file: 5P128SS26-TTL (Wavetek Rf Products, Inc), 6406856-2 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div).
Key specifications for 6406856-2: Overall Height: 1.620 INCHES NOMINAL IN; Mounting Hole/stud Quantity: 4; Frequency Range: 0.000 HERTZ MINIMUM AND 1.500 GIGAHERTZ MAXIMUM; Body Style: RECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES. 22 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 5985-01-286-1580 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.