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PartsTable / COMPONENT / G495-1PC28GLASS
G495-1PC28GLASS ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The WINDOW,OBSERVATION is a the manufacturer industrial component. Key specifications include material: GLASS, surface_finish: POLISHED, overall_diameter: 1.938 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN, special_features: MARKING 0.250 IN FROM EDGE IN, special_markings: HEAT TREATED, style_designator: CIRCULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 9340-00-468-1418, 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
G495-1PC28GLASS
NSN: 9340-00-468-1418
FSC: 9340
CAGE: 72957 — ELLIOTT COMPANY DIV JEANNETTE (USA)
SPECIFICATIONS
materialGLASS
surface_finishPOLISHED
overall_diameter1.938 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
special_featuresMARKING 0.250 IN FROM EDGE IN
special_markingsHEAT TREATED
style_designatorCIRCULAR
overall_thickness0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
material_transparencyCLEAR
material_document_and_classificationDD-G-451 FED SPEC SINGLE MATERIAL RESPONSE
NSN9340-00-468-1418
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available WINDOW,OBSERVATION TITLE COMPONENT PN G495-1PC28GLASS MFR WINDOW,OBSERVATION
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: DD-G-451 FED SPEC SINGLE MATERIAL RESPONSE
•
OVERALL THICKNESS: 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
MATERIAL: GLASS
•
MATERIAL TRANSPARENCY: CLEAR
•
SPECIAL MARKINGS: HEAT TREATED
•
SURFACE FINISH: POLISHED
•
STYLE DESIGNATOR: CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONDD-G-451 FED SPEC SINGLE MATERIAL RESPONSE
SPECIAL FEATURESMARKING 0.250 IN FROM EDGE IN
OVERALL THICKNESS0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
MATERIALGLASS
MATERIAL TRANSPARENCYCLEAR
SPECIAL MARKINGSHEAT TREATED
SURFACE FINISHPOLISHED
STYLE DESIGNATORCIRCULAR
OVERALL DIAMETER1.938 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
KS-8455 PC 5Interchangeable
interchangeable cross-reference
interchangeable
MIL-G-2857Interchangeable
interchangeable cross-reference
interchangeable
CC-1138-123Interchangeable
interchangeable cross-reference
interchangeable
CC-1138-124Interchangeable
interchangeable cross-reference
interchangeable
KS11678ASYM12 18LInterchangeable
interchangeable cross-reference
interchangeable
KS11678AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G495-1PC28GLASS?
G495-1PC28GLASS is a WINDOW,OBSERVATION.
What parts can replace G495-1PC28GLASS?
There are 24 known substitutes for G495-1PC28GLASS: KS-8455 PC 5, MIL-G-2857, CC-1138-123 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for G495-1PC28GLASS?
G495-1PC28GLASS is cataloged in the Federal Logistics Information System (FLIS) under NSN 9340-00-468-1418. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026