The Attenuator,variable, cataloged under National Stock Number 5985-01-068-1657, 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 Us Army Aviation and Missile Command. Government technical data includes 27 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-068-1657 |
| Primary Part Number | 10291852 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.3 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Frequency Range | 0.000 GIGAHERTZ MINIMUM AND 2.000 GIGAHERTZ MAXIMUM |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Body Style | COAXIAL TYPE |
| Attenuation Accuracy Reference Frequency | 30.0 MEGAHERTZ |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Segment Attenuation Accuracy in Decibels | -0.20 TO 0.20 |
| Adjustment Device Type and Quantity | 1 SHAFT |
| First Flat Length | 0.500 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 70.0 |
| Voltage Standing Wave Ratio | 1.20 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Scale Linearity | LINEAR |
| Attenuation Per Step in Decibels | 1.0 |
| Attenuation Variation Method | STEPPED |
| Distance Between Mounting Facility Centers | 1.120 INCHES NOMINAL IN |
| Mounting Thread Quantity | 32 PER INCH |
| Shaft Length | 0.750 INCHES NOMINAL IN |
| Scale Division Quantity | 70 |
| Mounting Facility Nominal Screw Thread Diameter | 0.164 INCHES IN |
| Vernier Scale Division Quantity | 10 |
| Operating Temp Range | -20.0 TO 125.0 CELSIUS DEGC |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| 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 |
|---|---|
| 50V70-257 | Alan Industries Inc (USA) |
| 10291852 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 10291852 | 5/9 Secondary reference K Electronics Inc. Dba Kelectronics Inc. |
| RA-5028 | 5/9 Secondary reference Trilithic, Inc. |
| 10291852 | 5/9 Secondary reference Alan Industries Inc |
NSN 5985-01-068-1657 is a Attenuator,variable, manufactured by Us Army Aviation and Missile Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-068-1657 has 2 manufacturer part numbers on file: 50V70-257 (Alan Industries Inc), 10291852 (Us Army Aviation and Missile Command).
Key specifications for 10291852: Shaft Type: ROUND, FLATTED; Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.3; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 2 THREADED HOLE(S). 27 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.