The Attenuator,variable, cataloged under National Stock Number 5985-01-368-8640, 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 Caes Systems Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-01-368-8640 |
| Primary Part Number | DA-B48 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Caes Systems Llc |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 6.5 |
| Frequency Range | 2.700 GIGAHERTZ MINIMUM AND 3.000 GIGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Attenuation Accuracy Reference Frequency | 0.5 GIGAHERTZ |
| Voltage Standing Wave Ratio | 1.40 |
| Attenuation Variation Method | STEPPED |
| Body Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| DA-B48 PRIMARY | Caes Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 1213640-201 | 7/1 Vendor item drawing reference Lockheed Martin Corporation Div Rms |
| 1213640-201 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 5985-01-368-8640 is a Attenuator,variable, manufactured by Caes Systems Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-368-8640 has 1 manufacturer part number on file: DA-B48 (Caes Systems Llc).
Key specifications for DA-B48: Insertion Loss at Minimum Attenuation in Maximum Decibels: 6.5; Overall Height: 1.600 INCHES NOMINAL IN; Frequency Range: 2.700 GIGAHERTZ MINIMUM AND 3.000 GIGAHERTZ MAXIMUM; Body Style: COAXIAL TYPE. 7 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.
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.