PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K125-1Switch,radio Frequency Transmiss

Raytheon Technical Services Company · NSN 5985-01-146-1277 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-146-1277 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-146-1277. Primary manufacturer part number: K125-1.
Features
  • Switch,radio Frequency Transmiss — FSC 5985
  • Terminal Type and Quantity: 2 TURRET AND 6 RECEPTACLE, COAXIAL
  • Switching Time: 25.0 MILLISECONDS MS
  • Frequency Rating: 0.0 GIGAHERTZ MINIMUM AND 6.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY RF POWER HANDLING
  • Actuator Current Type and Rating in Amps: 0.5 DC NOMINAL
  • Operating Temp Range: -55.0 TO 100.0 CELSIUS DEGC
  • Actuator Voltage in Volts: 26.0 NOMINAL
  • Pole Quantity: 2
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-146-1277, 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 Raytheon Technical Services Company. Government technical data includes 21 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-146-1277
Primary Part NumberK125-1
Item NameSwitch,radio Frequency Transmiss
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerRaytheon Technical Services Company
StatusACTIVE
Terminal Type and Quantity2 TURRET AND 6 RECEPTACLE, COAXIAL
Switching Time25.0 MILLISECONDS MS
Frequency Rating0.0 GIGAHERTZ MINIMUM AND 6.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY RF POWER HANDLING
Actuator Current Type and Rating in Amps0.5 DC NOMINAL
Operating Temp Range-55.0 TO 100.0 CELSIUS DEGC
Actuator Voltage in Volts26.0 NOMINAL
Pole Quantity2
Coupling Position Quantity6
Body StyleIRREGULAR
Frequency Rating0.0 GIGAHERTZ MINIMUM AND 3.0 GIGAHERTZ MAXIMUM FIRST FREQUENCY INSERTION LOSS REFERENCE
Frequency Rating3.0 GIGAHERTZ MINIMUM AND 6.0 GIGAHERTZ MAXIMUM SECOND FREQUENCY VOLTAGE STANDING WAVE RATIO
Switch Operation SequenceMAKES BEFORE BREAKS
Frequency Rating3.0 GIGAHERTZ MINIMUM AND 6.0 GIGAHERTZ MAXIMUM SECOND FREQUENCY INSERTION LOSS REFERENCE
Throw Quantity2
Coaxial Connector Series DesignationBNC
Rf Maximum Voltage Rating100.0 VOLTS PEAK
Frequency Rating0.0 GIGAHERTZ MINIMUM AND 3.0 GIGAHERTZ MAXIMUM FIRST FREQUENCY VOLTAGE STANDING WAVE RATIO
Rf Power Handling Capability50.0 WATTS AVERAGE FIRST
Switch TypeNONTRANSFER
Connector End DesignFEMALE
Rf Power Handling Capability2.0 KILOWATTS PEAK SECOND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2530-00-137-1761K125-1 INTERCHANGEABLE
Spindle,wheel,driving-Nondriving
Pdi Ground Support Systems, Inc.
5985-00-150-1009360-11896-15 INTERCHANGEABLE
Switch,radio Frequency Transmiss
Sensor Systems, L.l.c. Dba Sensor Systems Llc
5640-01-674-2926K1251 INTERCHANGEABLE
Insulation Blanket,thermal
Johns Manville Intl
Cross-Reference Index
Part NumberManufacturer
K125-1 Raytheon Technical Services Company (USA)
360-11896-15 Arrowsmith Shelburne Inc (USA)
K125-1 Cae Usa Inc. (USA)
Related Parts
2530-00-137-1761INTERCHANGEABLE
SPINDLE,WHEEL,DRIVING-NONDRIVING
K125-1
5985-00-150-1009INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
360-11896-15
5640-01-674-2926INTERCHANGEABLE
INSULATION BLANKET,THERMAL
K1251

Frequently Asked Questions

What is NSN 5985-01-146-1277?

NSN 5985-01-146-1277 is a Switch,radio Frequency Transmiss, manufactured by Raytheon Technical Services Company, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-146-1277?

NSN 5985-01-146-1277 has 3 cross-referenced part numbers: K125-1 (Raytheon Technical Services Company), 360-11896-15 (Arrowsmith Shelburne Inc), K125-1 (Cae Usa Inc.).

What NSN replaces 5985-01-146-1277?

There are 3 known substitutes for 5985-01-146-1277: 2530-00-137-1761, 5985-00-150-1009, 5640-01-674-2926. Verify interchangeability with system specifications before substitution.

What are the specifications of K125-1?

Key specifications for K125-1: Terminal Type and Quantity: 2 TURRET AND 6 RECEPTACLE, COAXIAL; Switching Time: 25.0 MILLISECONDS MS; Overall Length: 3.390 INCHES NOMINAL IN; Frequency Rating: 0.0 GIGAHERTZ MINIMUM AND 6.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY RF POWER HANDLING. 24 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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