The Attenuator,variable, cataloged under National Stock Number 5985-00-175-0267, 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 Us Army Aviation and Missile Command. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-175-0267 |
| Primary Part Number | 10668937 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Waveguide Flange Type | COVER |
| Mounting Facility Type and Quantity | 4 TERMINAL WITH MOUNTING HOLES |
| Body Style | WAVEGUIDE TYPE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Adjustment Device Type and Quantity | 1 SLOTTED SCREW |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.220 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 25.0 |
| Waveguide Flange Designation | UG-39/U |
| Unthreaded Mounting Hole Diameter | 0.169 INCHES NOMINAL IN |
| Attenuation Variation Method | CONTINUOUS |
| Operating Temp Range | -55.0 TO 85.0 CELSIUS DEGC |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.280 INCHES NOMINAL IN |
| Application Design | WAVEGUIDE |
| Terminal Type and Quantity | 1 CONNECTOR, COAXIAL, FEMALE AND 2 FLANGE |
| Power Rating | 1.0 WATTS AVERAGE AND 5.0 WATTS PEAK |
| Coaxial Connector Series Designation | TNC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 10668937 PRIMARY | Us Army Aviation and Missile Command (USA) |
| MA8319-1X36 | Semic Rf Electronic Gmbh (DEU) |
| MD45X1 | Caes Mission Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| MA8319-1X36 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-175-0267 is a Attenuator,variable, manufactured by Us Army Aviation and Missile Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-175-0267 has 3 manufacturer part numbers on file: 10668937 (Us Army Aviation and Missile Command), MA8319-1X36 (Semic Rf Electronic Gmbh), MD45X1 (Caes Mission Systems Llc).
Key specifications for 10668937: Waveguide Flange Type: COVER; Mounting Facility Type and Quantity: 4 TERMINAL WITH MOUNTING HOLES; Overall Height: 2.250 INCHES NOMINAL IN; Body Style: WAVEGUIDE TYPE. 16 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 5985-00-175-0267 has DEMIL Code B. 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.