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9N1664 — GEAR,HELICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

9N1664: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_style: W/ KEYWAY BOTH ENDS, tooth_form: STANDARD, style_designator: HUBLESS, face_nominal_width: 1.055 INCHES IN, keyway_nominal_width: 0.131 INCHES BOTH ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-092-8386, 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
9N1664
NSN: 3020-01-092-8386
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_styleW/ KEYWAY BOTH ENDS
tooth_formSTANDARD
teeth_quantity5
style_designatorHUBLESS
face_nominal_width1.055 INCHES IN
keyway_nominal_width0.131 INCHES BOTH ENDS IN
bore_nominal_diameter3.720 INCHES BOTH ENDS IN
nominal_outside_diameter4.3990 INCHES IN
nominal_distance_from_bore_center_to_keyway_bottom1.938 INCHES BOTH ENDS IN
NSN3020-01-092-8386
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,HELICAL TITLE COMPONENT PN 9N1664 MFR GEAR,HELICAL
KEY FEATURES
•
KEYWAY NOMINAL WIDTH: 0.131 INCHES BOTH ENDS IN
•
BORE NOMINAL DIAMETER: 3.720 INCHES BOTH ENDS IN
•
TEETH QUANTITY: 5
•
BORE STYLE: W/ KEYWAY BOTH ENDS
•
STYLE DESIGNATOR: HUBLESS
•
TOOTH FORM: STANDARD
•
NOMINAL OUTSIDE DIAMETER: 4.3990 INCHES IN
•
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM: 1.938 INCHES BOTH ENDS IN
TECHNICAL CHARACTERISTICS
KEYWAY NOMINAL WIDTH0.131 INCHES BOTH ENDS IN
BORE NOMINAL DIAMETER3.720 INCHES BOTH ENDS IN
TEETH QUANTITY5
BORE STYLEW/ KEYWAY BOTH ENDS
STYLE DESIGNATORHUBLESS
TOOTH FORMSTANDARD
NOMINAL OUTSIDE DIAMETER4.3990 INCHES IN
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM1.938 INCHES BOTH ENDS IN
MATERIALSTEEL OVERALL
FACE NOMINAL WIDTH1.055 INCHES IN
OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9N1664?
9N1664 is a GEAR,HELICAL.
What is the NSN for 9N1664?
9N1664 is cataloged in the U.S. Government catalog under NSN 3020-01-092-8386. 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.