The Attenuator,variable, cataloged under National Stock Number 5985-00-432-7652, 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 The Dewey Electronics Corporation. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-432-7652 |
| Primary Part Number | 40671-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | The Dewey Electronics Corporation |
| Status | ACTIVE |
| Shaft Type | ROUND |
| Impedance Rating in Ohms | 2500.0 INPUT-OUTPUT |
| Body Diameter | 2.781 INCHES NOMINAL IN |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Shaft Diameter | 0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Body Style | CYLINDRICAL W/SIDE TERMINALS |
| Mounting Facility Pattern | FOUR POSITION CIRCULAR |
| Adjustment Device Type and Quantity | 1 SHAFT |
| Overall Attenuation Range in Decibels | +0.0 TO 45.0 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Attenuation Per Step in Decibels | 1.0 |
| Attenuation Variation Method | STEPPED |
| Mounting Thread Quantity | 32 PER INCH |
| Shaft Length | 0.500 INCHES NOMINAL IN |
| Body Length | 1.750 INCHES MAXIMUM IN |
| Mounting Facility Nominal Screw Thread Diameter | 0.164 INCHES IN |
| Bolt Circle Diameter | 1.500 INCHES NOMINAL IN |
| Operating Temp Range | +0.0 TO 65.0 CELSIUS DEGC |
| Terminal Type and Quantity | 4 TAB, SOLDER LUG |
| Step Position Quantity | 45 |
| 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 |
|---|---|
| 40671-1 PRIMARY | The Dewey Electronics Corporation (USA) |
NSN 5985-00-432-7652 is a Attenuator,variable, manufactured by The Dewey Electronics Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-432-7652 has 1 manufacturer part number on file: 40671-1 (The Dewey Electronics Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 5331-01-316-1480, 6515-01-506-3062, 5340-01-595-7519. Verify interchangeability with system specifications before substitution.
Key specifications for 40671-1: Shaft Type: ROUND; Impedance Rating in Ohms: 2500.0 INPUT-OUTPUT; Body Diameter: 2.781 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 4 THREADED HOLE(S). 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 5985-00-432-7652 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.