The Attenuator,variable, cataloged under National Stock Number 5985-01-154-8771, 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 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-154-8771 |
| Primary Part Number | DA-A81A |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Caes Systems Llc |
| Status | ACTIVE |
| Frequency Range | 4.000 GIGAHERTZ MINIMUM AND 4.400 GIGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Overall Attenuation Range in Decibels | +0.0 TO 32.0 |
| Application Design | TRANSMISSION LINE |
| 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 |
|---|---|
| DA-A81A PRIMARY | Caes Systems Llc (USA) |
NSN 5985-01-154-8771 is a Attenuator,variable, manufactured by Caes Systems Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-154-8771 has 1 manufacturer part number on file: DA-A81A (Caes Systems Llc).
Key specifications for DA-A81A: Overall Height: 2.500 INCHES NOMINAL IN; Frequency Range: 4.000 GIGAHERTZ MINIMUM AND 4.400 GIGAHERTZ MAXIMUM; Body Style: COAXIAL TYPE; Overall Attenuation Range in Decibels: +0.0 TO 32.0. 4 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 5985-01-154-8771 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.