PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1085AS565Switch,radio Frequency Transmiss

Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · NSN 5985-01-181-0128 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-181-0128 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-181-0128. Primary manufacturer part number: 1085AS565.
Features
  • Switch,radio Frequency Transmiss — FSC 5985
  • Switch Operation Sequence: MAKES BEFORE BREAKS
  • Coaxial Connector Series Designation: SMA
  • Throw Quantity: 2
  • Frequency Rating: 4.0 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM SECOND FREQUENCY VOLTAGE STANDING WAVE RATIO
  • Switch Return Mechanism Type: FAIL-SAFE
  • Frequency Rating: 0.0 GIGAHERTZ MINIMUM AND 4.0 GIGAHERTZ MAXIMUM FIRST FREQUENCY VOLTAGE STANDING WAVE RATIO
  • Terminal Type and Quantity: 1 CONNECTOR, RECEPTACLE AND 3 RECEPTACLE, COAXIAL
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-181-0128, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-181-0128
Primary Part Number1085AS565
Item NameSwitch,radio Frequency Transmiss
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
Switch Operation SequenceMAKES BEFORE BREAKS
Coaxial Connector Series DesignationSMA
Throw Quantity2
Frequency Rating4.0 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM SECOND FREQUENCY VOLTAGE STANDING WAVE RATIO
Switch Return Mechanism TypeFAIL-SAFE
Frequency Rating0.0 GIGAHERTZ MINIMUM AND 4.0 GIGAHERTZ MAXIMUM FIRST FREQUENCY VOLTAGE STANDING WAVE RATIO
Terminal Type and Quantity1 CONNECTOR, RECEPTACLE AND 3 RECEPTACLE, COAXIAL
Actuator Current Type and Rating in Amps0.14 DC NOMINAL
Frequency Rating0.0 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY RF POWER HANDLING
Pole Quantity1
Actuator Voltage in Volts28.0 NOMINAL
Frequency Rating12.4 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM THIRD FREQUENCY VOLTAGE STANDING WAVE RATIO
Body StyleIRREGULAR
Rf Power Handling Capability2.0 KILOWATTS PEAK SECOND
Operating Temp Range-55.0 TO 85.0 CELSIUS DEGC
Switch TypeNONTRANSFER
Connector End DesignFEMALE
Rf Power Handling Capability50.0 WATTS AVERAGE FIRST
Coupling Position Quantity4
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5120-00-187-7131 INTERCHANGEABLE
Wrench,open End
4920-00-497-638447-976-002-1T202 INTERCHANGEABLE
Support,main Rotor
Textron Systems Corporation Dba Textron Systems Corp
6635-01-218-5154S2.830 INTERCHANGEABLE
Detector,metal Flaw,electronic
Foerster Instruments Incorporated
Cross-Reference Index
Part NumberManufacturer
S2830 Rlc Electronics, Inc (USA)
1085AS565 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
Related Parts
5120-00-187-7131INTERCHANGEABLE
WRENCH,OPEN END
4920-00-497-6384INTERCHANGEABLE
SUPPORT,MAIN ROTOR
47-976-002-1T202
6635-01-218-5154INTERCHANGEABLE
DETECTOR,METAL FLAW,ELECTRONIC
S2.830

Frequently Asked Questions

What is NSN 5985-01-181-0128?

NSN 5985-01-181-0128 is a Switch,radio Frequency Transmiss, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-181-0128?

NSN 5985-01-181-0128 has 2 cross-referenced part numbers: S2830 (Rlc Electronics, Inc), 1085AS565 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).

What NSN replaces 5985-01-181-0128?

There are 3 known substitutes for 5985-01-181-0128: 5120-00-187-7131, 4920-00-497-6384, 6635-01-218-5154. Verify interchangeability with system specifications before substitution.

What are the specifications of 1085AS565?

Key specifications for 1085AS565: Switch Operation Sequence: MAKES BEFORE BREAKS; Coaxial Connector Series Designation: SMA; Throw Quantity: 2; Frequency Rating: 4.0 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM SECOND FREQUENCY VOLTAGE STANDING WAVE RATIO. 22 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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