The Attenuator,variable, cataloged under National Stock Number 5985-01-321-9503, 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 L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 19 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 | 5985-01-321-9503 |
| Primary Part Number | G300769-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.5 |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Frequency Range | 1.000 GIGAHERTZ MINIMUM AND 8.000 GIGAHERTZ MAXIMUM |
| Body Style | COAXIAL 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 | 0.660 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 20.0 |
| Voltage Standing Wave Ratio | 1.50 |
| Segment Attenuation Range in Decibels | +0.00 TO 10.00 AND +10.00 TO 15.00 AND +15.00 TO 20.00 |
| Unthreaded Mounting Hole Diameter | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| Attenuation Per Step in Decibels | 10.0 AND 15.0 AND 20.0 |
| Attenuation Variation Method | STEPPED |
| 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 AVERAGE |
| Step Position Quantity | 4 |
| Coaxial Connector Series Designation | SMA |
| 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 |
|---|---|
| G300769-1 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
| AUM15A/40707 | Merrimac Industries, Inc (USA) |
NSN 5985-01-321-9503 is a Attenuator,variable, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-321-9503 has 2 manufacturer part numbers on file: G300769-1 (L3harris Technologies, Inc Div Space & Airborne Systems), AUM15A/40707 (Merrimac Industries, Inc).
Key specifications for G300769-1: Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.5; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Overall Height: 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN; Frequency Range: 1.000 GIGAHERTZ MINIMUM AND 8.000 GIGAHERTZ MAXIMUM. 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 5985-01-321-9503 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.