The Attenuator,variable, cataloged under National Stock Number 5985-00-020-5947, 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 Merrimac Industries, Inc. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-020-5947 |
| Primary Part Number | AUM15-705111 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Merrimac Industries, Inc |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 1.0 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Frequency Range | 8.500 GIGAHERTZ MINIMUM AND 9.600 GIGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Adjustment Device Type and Quantity | 1 SLOTTED SCREW |
| Overall Attenuation Range in Decibels | +0.0 TO 15.0 |
| Voltage Standing Wave Ratio | 1.50 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Overall Attenuation Accuracy in Decibels | -1.00 TO 1.00 |
| Attenuation Variation Method | CONTINUOUS |
| Center to Center Distance Between Mounting Facilities Parallel to Height | 0.840 INCHES NOMINAL IN |
| Mounting Thread Quantity | 56 PER INCH |
| Operating Temp Range | -54.0 TO 95.0 CELSIUS DEGC |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 0.660 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 1.0 WATTS AVERAGE |
| 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 |
|---|---|
| AUM15-705111 | Merrimac Industries, Inc (USA) |
| Reference | Meaning |
|---|---|
| 580R580H01 | 5/9 Secondary reference Advanced Technical Materials, Inc. Dba a T M |
| 580R580H01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-020-5947 is a Attenuator,variable, manufactured by Merrimac Industries, Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-020-5947 has 1 manufacturer part number on file: AUM15-705111 (Merrimac Industries, Inc).
Key specifications for AUM15-705111: Insertion Loss at Minimum Attenuation in Maximum Decibels: 1.0; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Overall Height: 1.720 INCHES NOMINAL IN. 19 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 5985-00-020-5947 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.