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Technical Data Sheet
PartsTable / COMPONENT / STH2051N
STH2051N ✓ Verified by PartsTable
— · COMPONENT
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

ISOLATOR,RADIO FREQUENCY REFLECT. Key specifications include overall_length: 7.812 INCHES NOMINAL IN, overall_diameter: 2.125 INCHES NOMINAL IN, fsc_application_data: WAVEGUIDE, frequency_range_rating: +2.0 TO 4.0 GIGAHERTZ. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-439-3536, 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
STH2051N
NSN: 5985-00-439-3536
FSC: 5985
CAGE: 55387 — PAMTECH INC (USA)
SPECIFICATIONS
overall_length7.812 INCHES NOMINAL IN
overall_diameter2.125 INCHES NOMINAL IN
fsc_application_dataWAVEGUIDE
frequency_range_rating+2.0 TO 4.0 GIGAHERTZ
NSN5985-00-439-3536
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ISOLATOR,RADIO FREQUENCY REFLECT TITLE COMPONENT PN STH2051N MFR ISOLATOR,RADIO FREQUEN
KEY FEATURES
•
FREQUENCY RANGE RATING: +2.0 TO 4.0 GIGAHERTZ
•
OVERALL DIAMETER: 2.125 INCHES NOMINAL IN
•
FSC APPLICATION DATA: WAVEGUIDE
TECHNICAL CHARACTERISTICS (FLIS)
FREQUENCY RANGE RATING+2.0 TO 4.0 GIGAHERTZ
OVERALL DIAMETER2.125 INCHES NOMINAL IN
OVERALL LENGTH7.812 INCHES NOMINAL IN
FSC APPLICATION DATAWAVEGUIDE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
109614Interchangeable
interchangeable cross-reference
interchangeable
DS17Interchangeable
interchangeable cross-reference
interchangeable
KS27Interchangeable
interchangeable cross-reference
interchangeable
WS610Interchangeable
interchangeable cross-reference
interchangeable
S30SInterchangeable
interchangeable cross-reference
interchangeable
CO-331-2.4Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is STH2051N?
STH2051N is a ISOLATOR,RADIO FREQUENCY REFLECT.
What parts can replace STH2051N?
There are 6 known substitutes for STH2051N: 109614, DS17, KS27 and 3 more. Substitute compatibility should be verified for your specific system.
Is STH2051N still available?
STH2051N is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026