The Attenuator,variable, cataloged under National Stock Number 5985-00-485-4876, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-485-4876 |
| Primary Part Number | 134308-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.2 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 2 CONNECTOR |
| Frequency Range | 40.000 MEGAHERTZ MINIMUM AND 80.000 MEGAHERTZ MAXIMUM |
| Body Style | CYLINDRICAL W/ADJUSTMENT KNOB |
| Adjustment Device Type and Quantity | 2 KNOB |
| Overall Diameter | 1.830 INCHES MAXIMUM IN |
| Overall Attenuation Range in Decibels | +0.0 TO 60.0 |
| Voltage Standing Wave Ratio | 1.20 |
| Overall Attenuation Accuracy in Decibels | -1.000 TO 1.000 |
| Scale Linearity | LINEAR |
| Attenuation Per Step in Decibels | 1.0 AND 10.0 |
| Attenuation Variation Method | STEPPED |
| Operating Temp Range | +0.0 TO 75.0 CELSIUS DEGC |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 200.0 MILLIWATTS AVERAGE |
| Step Position Quantity | 15 |
| Coaxial Connector Series Designation | SMA |
| 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 |
|---|---|
| 50DV70-957 | Alan Industries Inc (USA) |
| 134308-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 134308-1 | 5/9 Secondary reference Alan Industries Inc |
| LA524 | 5/9 Secondary reference Trilithic, Inc. |
| RA524 | 5/9 Secondary reference Trilithic, Inc. |
NSN 5985-00-485-4876 is a Attenuator,variable, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-485-4876 has 2 manufacturer part numbers on file: 50DV70-957 (Alan Industries Inc), 134308-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-556-2775. Verify interchangeability with system specifications before substitution.
Key specifications for 134308-1: Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.2; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 2 CONNECTOR; Frequency Range: 40.000 MEGAHERTZ MINIMUM AND 80.000 MEGAHERTZ 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 5985-00-485-4876 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.