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Technical Data Sheet
28-181 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SWITCH,ROTARY is a the manufacturer industrial component. Key specifications include body_style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE, overall_length: 2.040 INCHES NOMINAL IN, frequency_range: 3.000 GIGAHERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM, mounting_method: CONNECTOR, overall_diameter: 0.625 INCHES NOMINAL IN, application_design: TRANSMISSION LINE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-192-3956, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO MRO_GENERAL 28-181
NSN: 5985-00-192-3956
FSC: 5985
CAGE: 93459 — SPECTRUM CONTROL INC DIV WEINSCHEL (USA)
SPECIFICATIONS
body_styleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
overall_length2.040 INCHES NOMINAL IN
frequency_range3.000 GIGAHERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
mounting_methodCONNECTOR
overall_diameter0.625 INCHES NOMINAL IN
application_designTRANSMISSION LINE
end_item_identificationHOYT MODEL HD-2000
terminal_type_and_quantity2 CONNECTOR
voltage_standing_wave_ratio1.60
connection_type_per_functionFEMALE OUTPUT AND MALE INPUT
input_impedance_rating_in_ohms50.0
output_impedance_rating_in_ohms50.0
NSN5985-00-192-3956
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,ROTARY TITLE COMPONENT PN 28-181 MFR SWITCH,ROTARY
KEY FEATURES
APPLICATION DESIGN: TRANSMISSION LINE
TERMINAL TYPE AND QUANTITY: 2 CONNECTOR
CONNECTION TYPE PER FUNCTION: FEMALE OUTPUT AND MALE INPUT
BODY STYLE: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
COAXIAL CONNECTOR SERIES DESIGNATION: N
ATTENUATION ACCURACY IN DECIBELS: -0.75 TO 0.75
VOLTAGE STANDING WAVE RATIO: 1.60
TECHNICAL CHARACTERISTICS (FLIS)
APPLICATION DESIGNTRANSMISSION LINE
TERMINAL TYPE AND QUANTITY2 CONNECTOR
OVERALL LENGTH2.040 INCHES NOMINAL IN
CONNECTION TYPE PER FUNCTIONFEMALE OUTPUT AND MALE INPUT
BODY STYLEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
COAXIAL CONNECTOR SERIES DESIGNATIONN
ATTENUATION ACCURACY IN DECIBELS-0.75 TO 0.75
VOLTAGE STANDING WAVE RATIO1.60
MOUNTING METHODCONNECTOR
VOLTAGE STANDING WAVE RATIO FREQUENCY RANGE+3.0 TO 18.0 GIGAHERTZ
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
MIL-N-25161Interchangeable
interchangeable cross-reference
interchangeable
8-958-1Interchangeable
interchangeable cross-reference
interchangeable
AN912-3Interchangeable
interchangeable cross-reference
interchangeable
6432Interchangeable
interchangeable cross-reference
interchangeable
134605-0005Interchangeable
interchangeable cross-reference
interchangeable
134605-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 28-181?
28-181 is a SWITCH,ROTARY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 28-181?
There are 11 known substitutes for 28-181: MIL-N-25161, 8-958-1, AN912-3 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28-181?
28-181 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-192-3956. This indicates validated use in U.S. government and defense supply chains.
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