The Attenuator,variable, cataloged under National Stock Number 5985-00-252-2598, 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 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-252-2598 |
| Primary Part Number | AUM15A11725 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Merrimac Industries, Inc |
| Status | ACTIVE |
| Shaft Type | ROUND, SLOTTED |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.5 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Frequency Range | 2.000 GIGAHERTZ MINIMUM AND 8.000 GIGAHERTZ MAXIMUM |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Body Style | COAXIAL TYPE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Adjustment Device Type and Quantity | 1 SHAFT |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 0.660 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 20.0 |
| Voltage Standing Wave Ratio | 1.50 |
| Unthreaded Mounting Hole Diameter | 0.090 INCHES NOMINAL IN |
| Attenuation Variation Method | CONTINUOUS |
| Shaft Length | 0.720 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 0.840 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 2.0 WATTS PEAK |
| Coaxial Connector Series Designation | OSM |
| 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 |
|---|---|
| AUM15A11725 PRIMARY | Merrimac Industries, Inc (USA) |
| AR3834-2 | Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA) |
| Reference | Meaning |
|---|---|
| 723786-2 | 7/2 Vendor item drawing reference Raytheon Company Div Rmd Strategic |
| 723786-002 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company Div Rmd Strategic |
NSN 5985-00-252-2598 is a Attenuator,variable, manufactured by Merrimac Industries, Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-252-2598 has 2 manufacturer part numbers on file: AUM15A11725 (Merrimac Industries, Inc), AR3834-2 (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc).
Key specifications for AUM15A11725: Shaft Type: ROUND, SLOTTED; Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.5; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 4 UNTHREADED 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 5985-00-252-2598 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.