The Attenuator,variable, cataloged under National Stock Number 5985-01-255-1952, 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 Frontgrade Technologies Inc.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-255-1952 |
| Primary Part Number | 130488-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Voltage Standing Wave Ratio | 1.10 |
| Attenuation Variation Method | CONTINUOUS |
| Application Design | WAVEGUIDE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 130488-1 PRIMARY | Frontgrade Technologies Inc. (USA) |
| 5204858-1 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| 90FE119 PRIMARY | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
| 5204858-1 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5204858/REV P SHT 8 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5985-01-255-1952 is a Attenuator,variable, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-255-1952 has 4 manufacturer part numbers on file: 130488-1 (Frontgrade Technologies Inc.), 5204858-1 (Raytheon Company Dba Raytheon Co), 90FE119 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc), 5204858-1 (Naval Sea Systems Command).
Key specifications for 130488-1: Voltage Standing Wave Ratio: 1.10; Attenuation Variation Method: CONTINUOUS; Application Design: WAVEGUIDE. 3 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 5985-01-255-1952 has DEMIL Code B. 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.