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3421C8 — HOUSING,MECHANICAL DRIVE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3421C8: HOUSING,MECHANICAL DRIVE.

The HOUSING,MECHANICAL DRIVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, teeth_type: SPUR, tooth_form: STANDARD, pitch_height: 0.6406 INCHES NOMINAL IN, pressure_angle: 14.5000 DEGREES, teeth_quantity: 11. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-200-4366, 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
3421C8
NSN: 3020-01-200-4366
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
teeth_typeSPUR
tooth_formSTANDARD
pitch_height0.6406 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
teeth_quantity11
style_designatorROUND, BOSS MOUNTED
nominal_thickness0.750 INCHES IN
face_nominal_width0.938 INCHES IN
boss_nominal_length0.750 INCHES BOTH ENDS IN
boss_nominal_diameter0.875 INCHES BOTH ENDS IN
nominal_overall_length7.656 INCHES IN
NSN3020-01-200-4366
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HOUSING,MECHANICAL DRIVE TITLE COMPONENT PN 3421C8 MFR HOUSING,MECHANICAL DRI
KEY FEATURES
•
TEETH QUANTITY: 11
•
PITCH HEIGHT: 0.6406 INCHES NOMINAL IN
•
TEETH TYPE: SPUR
•
NOMINAL OVERALL LENGTH: 7.656 INCHES IN
•
STYLE DESIGNATOR: ROUND, BOSS MOUNTED
•
TOOTH FORM: STANDARD
•
NOMINAL OUTSIDE DIAMETER: 1.062 INCHES IN
•
BOSS NOMINAL LENGTH: 0.750 INCHES BOTH ENDS IN
TECHNICAL CHARACTERISTICS
TEETH QUANTITY11
PITCH HEIGHT0.6406 INCHES NOMINAL IN
TEETH TYPESPUR
NOMINAL OVERALL LENGTH7.656 INCHES IN
STYLE DESIGNATORROUND, BOSS MOUNTED
TOOTH FORMSTANDARD
NOMINAL OUTSIDE DIAMETER1.062 INCHES IN
BOSS NOMINAL LENGTH0.750 INCHES BOTH ENDS IN
BOSS NOMINAL DIAMETER0.875 INCHES BOTH ENDS IN
PRESSURE ANGLE14.5000 DEGREES
SUBSTITUTES & CROSS-REFERENCES 2
3421RA PIECE 8Reference document
Same NSN cross-reference
Reference document — Secondary reference
3421RAReference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3421C8?
3421C8 is a HOUSING,MECHANICAL DRIVE.
What parts can replace 3421C8?
There are 2 known substitutes for 3421C8: 3421RA PIECE 8, 3421RA. Substitute compatibility should be verified for your specific system.
What is the NSN for 3421C8?
3421C8 is cataloged in the U.S. Government catalog under NSN 3020-01-200-4366. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.