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TG251 ✓ 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

The WINDOW,DIAL is a the manufacturer industrial component. Key specifications include material: GLASS, outside_diameter: 3.500 INCHES NOMINAL IN, style_designator: ROUND, attachment_method: SLOT, material_thickness: 0.062 INCHES NOMINAL IN, end_item_identification: TEST SET,RADIO FREQUENCY POWER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-00-091-0524, 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
TG251
NSN: 5355-00-091-0524
FSC: 5355
CAGE: 30040 — TELECTRO SYSTEMS CORP
SPECIFICATIONS
materialGLASS
outside_diameter3.500 INCHES NOMINAL IN
style_designatorROUND
attachment_methodSLOT
material_thickness0.062 INCHES NOMINAL IN
end_item_identificationTEST SET,RADIO FREQUENCY POWER
NSN5355-00-091-0524
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available WINDOW,DIAL TITLE COMPONENT PN TG251 MFR WINDOW,DIAL
KEY FEATURES
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
ATTACHMENT METHOD: SLOT
•
STYLE DESIGNATOR: ROUND
•
OUTSIDE DIAMETER: 3.500 INCHES NOMINAL IN
•
MATERIAL: GLASS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
END ITEM IDENTIFICATIONTEST SET,RADIO FREQUENCY POWER
ATTACHMENT METHODSLOT
STYLE DESIGNATORROUND
OUTSIDE DIAMETER3.500 INCHES NOMINAL IN
MATERIALGLASS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
30065Interchangeable
interchangeable cross-reference
interchangeable
1B5224Interchangeable
interchangeable cross-reference
interchangeable
462Interchangeable
interchangeable cross-reference
interchangeable
T7611797-1Interchangeable
interchangeable cross-reference
interchangeable
211571Interchangeable
interchangeable cross-reference
interchangeable
T7618660-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TG251?
TG251 is a WINDOW,DIAL.
What parts can replace TG251?
There are 6 known substitutes for TG251: 30065, 1B5224, 462 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TG251?
TG251 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-00-091-0524. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026