PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1629Attenuator,variable

General Microwave Corporation Div Kratos Microwave Electronics · NSN 5985-01-242-8785 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-242-8785 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-242-8785. Primary manufacturer part number: 1629.
Features
  • Attenuator,variable — FSC 5985
  • Attenuation Variation Method: STEPPED
  • Terminal Type and Quantity: 3 SOLDER STUD AND 3 CONNECTOR, COAXIAL, FEMALE
  • Attenuation Per Step in Decibels: 5.0
  • Unthreaded Mounting Hole Diameter: 0.145 INCHES NOMINAL IN
  • Application Design: TRANSMISSION LINE
  • Coaxial Connector Series Designation: SMA
  • Frequency Range: 846.000 MEGAHERTZ MINIMUM AND 906.000 MEGAHERTZ MAXIMUM
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-01-242-8785, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is General Microwave Corporation Div Kratos Microwave Electronics. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-242-8785
Primary Part Number1629
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerGeneral Microwave Corporation Div Kratos Microwave Electronics
StatusACTIVE
Attenuation Variation MethodSTEPPED
Terminal Type and Quantity3 SOLDER STUD AND 3 CONNECTOR, COAXIAL, FEMALE
Attenuation Per Step in Decibels5.0
Unthreaded Mounting Hole Diameter0.145 INCHES NOMINAL IN
Application DesignTRANSMISSION LINE
Coaxial Connector Series DesignationSMA
Frequency Range846.000 MEGAHERTZ MINIMUM AND 906.000 MEGAHERTZ MAXIMUM
Center to Center Distance Between Mounting Facilities Parallel to Width3.550 INCHES NOMINAL IN
Overall Attenuation Accuracy in Decibels-3.00 TO 3.00
Body StyleCOAXIAL TYPE
Overall Attenuation Range in Decibels+0.0 TO 53.0
Center to Center Distance Between Mounting Facilities Parallel to Length3.374 INCHES NOMINAL IN
Adjustment Device Type and Quantity1 ELECTRONIC, VOLTAGE CONTROLLED
Mounting Facility PatternFOUR POSITION RECTANGULAR
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Step Position Quantity10
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5960-00-100-7146 INTERCHANGEABLE
Electron Tube
6645-00-162-2092 INTERCHANGEABLE
Timer,sequential
4730-00-223-64103B8487 INTERCHANGEABLE
Fitting,lubrication
Caterpillar Inc Div Caterpillar Defense
5930-00-257-9850118538-1 INTERCHANGEABLE
Switch,toggle
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
5120-00-408-1464 INTERCHANGEABLE
Puller,mechanical
5960-00-617-8925 INTERCHANGEABLE
Electron Tube
5815-01-083-9410 INTERCHANGEABLE
Back Stop,pad Assy
2530-01-105-95833219-F-2450 INTERCHANGEABLE
Brake Drum
Meritor Heavy Vehicle Systems, Llc
5935-01-121-3284 INTERCHANGEABLE
Connector
6510-01-171-89061629 INTERCHANGEABLE
Dressing,occlusive,adhesive
Solventum Us Llc
Cross-Reference Index
Part NumberManufacturer
1629 PRIMARY General Microwave Corporation Div Kratos Microwave Electronics (USA)
C5000936-1 Department of the Army Hq U S Army Electronics Research and Development Command (USA)
MA8438-S637 Cobham Advanced Electronic Solutions Inc. (USA)
Related Parts
5960-00-100-7146INTERCHANGEABLE
ELECTRON TUBE
6645-00-162-2092INTERCHANGEABLE
TIMER,SEQUENTIAL
4730-00-223-6410INTERCHANGEABLE
FITTING,LUBRICATION
3B8487
5930-00-257-9850INTERCHANGEABLE
SWITCH,TOGGLE
118538-1
5120-00-408-1464INTERCHANGEABLE
PULLER,MECHANICAL
5960-00-617-8925INTERCHANGEABLE
ELECTRON TUBE
5815-01-083-9410INTERCHANGEABLE
BACK STOP,PAD ASSY
2530-01-105-9583INTERCHANGEABLE
BRAKE DRUM
3219-F-2450
5935-01-121-3284INTERCHANGEABLE
CONNECTOR
6510-01-171-8906INTERCHANGEABLE
DRESSING,OCCLUSIVE,ADHESIVE
1629
5950-01-258-9716INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
4140-01-359-5742INTERCHANGEABLE
GUARD,FAN IMPELLER
1629

Frequently Asked Questions

What is NSN 5985-01-242-8785?

NSN 5985-01-242-8785 is a Attenuator,variable, manufactured by General Microwave Corporation Div Kratos Microwave Electronics, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-242-8785?

NSN 5985-01-242-8785 has 3 cross-referenced part numbers: 1629 (General Microwave Corporation Div Kratos Microwave Electronics), C5000936-1 (Department of the Army Hq U S Army Electronics Research and Development Command), MA8438-S637 (Cobham Advanced Electronic Solutions Inc.).

What NSN replaces 5985-01-242-8785?

There are 12 known substitutes for 5985-01-242-8785: 5960-00-100-7146, 6645-00-162-2092, 4730-00-223-6410 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1629?

Key specifications for 1629: Overall Width: 4.000 INCHES MAXIMUM IN; Attenuation Variation Method: STEPPED; Terminal Type and Quantity: 3 SOLDER STUD AND 3 CONNECTOR, COAXIAL, FEMALE; Attenuation Per Step in Decibels: 5.0. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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