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PartsTable / COMPONENT / 421970
421970 ✓ 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 KEY,SWITCH is a the manufacturer industrial component. Key specifications include material: GLASS BOROSILICATE, overall_height: 87.00 MILLIMETERS NOMINAL MM, capacity_rating: 250.000 MILLILITERS NOMINAL, special_features: LOW FORM, style_designator: CONICAL W/SPOUT, calibration_function: TO CONTAIN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6640-00-294-0710, 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
421970
NSN: 6640-00-294-0710
FSC: 6640
CAGE: 14674 — CORNING GLASS WORKS (USA)
SPECIFICATIONS
materialGLASS BOROSILICATE
overall_height87.00 MILLIMETERS NOMINAL MM
capacity_rating250.000 MILLILITERS NOMINAL
special_featuresLOW FORM
style_designatorCONICAL W/SPOUT
calibration_functionTO CONTAIN
end_item_identificationUSED ON TACAN BEACON SIMULATORS
NSN6640-00-294-0710
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available KEY,SWITCH TITLE COMPONENT PN 421970 MFR KEY,SWITCH
KEY FEATURES
•
STYLE DESIGNATOR: CONICAL W/SPOUT
•
MATERIAL: GLASS BOROSILICATE
•
CAPACITY RATING: 250.000 MILLILITERS NOMINAL
•
CALIBRATION FUNCTION: TO CONTAIN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCONICAL W/SPOUT
MATERIALGLASS BOROSILICATE
SPECIAL FEATURESLOW FORM
OVERALL HEIGHT87.00 MILLIMETERS NOMINAL MM
CAPACITY RATING250.000 MILLILITERS NOMINAL
CALIBRATION FUNCTIONTO CONTAIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
2566Interchangeable
interchangeable cross-reference
interchangeable
BACG10AH401Interchangeable
interchangeable cross-reference
interchangeable
A2566Interchangeable
interchangeable cross-reference
interchangeable
30155-2-6Interchangeable
interchangeable cross-reference
interchangeable
114068Interchangeable
interchangeable cross-reference
interchangeable
MS35489-106Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 421970?
421970 is a KEY,SWITCH.
What parts can replace 421970?
There are 10 known substitutes for 421970: 2566, BACG10AH401, A2566 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 421970?
421970 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6640-00-294-0710. 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