The Attenuator,variable, cataloged under National Stock Number 5985-01-078-4033, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-078-4033 |
| Primary Part Number | 378-0624-020 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Shaft Type | ROUND |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.4 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 4 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 |
| Mounting Facility Pattern | FOUR POSITION DIAMOND |
| Adjustment Device Type and Quantity | 1 SHAFT |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.125 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 10.0 |
| Voltage Standing Wave Ratio | 1.10 AND 1.20 AND 1.40 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Overall Attenuation Accuracy in Decibels | -0.40 TO 0.40 |
| Scale Linearity | LINEAR |
| Attenuation Per Step in Decibels | 1.0 |
| Attenuation Variation Method | STEPPED |
| Mounting Thread Quantity | 32 PER INCH |
| Shaft Length | 0.750 INCHES NOMINAL IN |
| Scale Division Quantity | 10 |
| Mounting Facility Nominal Screw Thread Diameter | 0.164 INCHES IN |
| Vernier Scale Division Quantity | 1 |
| Operating Temp Range | -20.0 TO 125.0 CELSIUS DEGC |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.125 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 1.0 WATTS AVERAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 378-0624-020 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| 50V10 | Alan Industries Inc (USA) |
NSN 5985-01-078-4033 is a Attenuator,variable, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-078-4033 has 2 manufacturer part numbers on file: 378-0624-020 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 50V10 (Alan Industries Inc).
Key specifications for 378-0624-020: Shaft Type: ROUND; Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.4; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 4 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.
NSN 5985-01-078-4033 has DEMIL Code Q. 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.