The Attenuator,variable, cataloged under National Stock Number 5985-01-125-0889, 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 Kappa Technologies Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-125-0889 |
| Primary Part Number | 90A772 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Kappa Technologies Inc. |
| Status | ACTIVE |
| Shaft Type | ROUND, SLOTTED |
| Mounting Facility Type and Quantity | 2 TERMINAL AND 2 THREADED BUSHING |
| Frequency Range | 0.000 HERTZ MINIMUM AND 20.000 MEGAHERTZ MAXIMUM |
| Shaft Diameter | 0.125 INCHES NOMINAL IN |
| Body Style | IRREGULAR |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Adjustment Device Type and Quantity | 1 SHAFT |
| Overall Attenuation Range in Decibels | +0.0 TO 6.0 |
| Mounting Facility Screw Thread Series Designator | UNF |
| Attenuation Per Step in Decibels | 3.0 |
| Attenuation Variation Method | STEPPED |
| Distance Between Mounting Facility Centers | 1.875 INCHES NOMINAL IN |
| Mounting Thread Quantity | 32 PER INCH |
| Shaft Length | 0.125 INCHES NOMINAL IN |
| Mounting Facility Nominal Screw Thread Diameter | 0.190 INCHES IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Step Position Quantity | 3 |
| Coaxial Connector Series Designation | TNC |
| 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 |
|---|---|
| EE-C0004-001 | Electrospace Systems Inc (USA) |
| 90A772 PRIMARY | Kappa Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| AT1926 | 5/2 Secondary reference U.S. Government activity |
NSN 5985-01-125-0889 is a Attenuator,variable, manufactured by Kappa Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-125-0889 has 2 manufacturer part numbers on file: EE-C0004-001 (Electrospace Systems Inc), 90A772 (Kappa Technologies Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-364-0150. Verify interchangeability with system specifications before substitution.
Key specifications for 90A772: Shaft Type: ROUND, SLOTTED; Mounting Facility Type and Quantity: 2 TERMINAL AND 2 THREADED BUSHING; Overall Height: 1.000 INCHES NOMINAL IN; Frequency Range: 0.000 HERTZ MINIMUM AND 20.000 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 5985-01-125-0889 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.