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3237556 — GEAR,INTERNAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3237556: GEAR,INTERNAL.

The GEAR,INTERNAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: PLAIN, SOLID, teeth_type: SINGLE HELIX, helix_angle: 5.0000 DEGREES, pitch_diameter: 13.8527 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-346-4404, 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
3237556
NSN: 3020-01-346-4404
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_stylePLAIN, SOLID
teeth_typeSINGLE HELIX
helix_angle5.0000 DEGREES
pitch_diameter13.8527 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity138
style_designatorPLAIN RING
nominal_overall_length1.877 INCHES IN
end_item_identificationTURBINE GEAR TRAIN ASSY
nominal_outside_diameter18.625 INCHES IN
NSN3020-01-346-4404
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,INTERNAL TITLE COMPONENT PN 3237556 MFR GEAR,INTERNAL
KEY FEATURES
•
HELIX ANGLE: 5.0000 DEGREES
•
TEETH QUANTITY: 138
•
BODY STYLE: PLAIN, SOLID
•
TEETH TYPE: SINGLE HELIX
•
NOMINAL OVERALL LENGTH: 1.877 INCHES IN
•
STYLE DESIGNATOR: PLAIN RING
•
PITCH DIAMETER: 13.8527 INCHES NOMINAL IN
•
NOMINAL OUTSIDE DIAMETER: 18.625 INCHES IN
TECHNICAL CHARACTERISTICS
HELIX ANGLE5.0000 DEGREES
TEETH QUANTITY138
BODY STYLEPLAIN, SOLID
TEETH TYPESINGLE HELIX
NOMINAL OVERALL LENGTH1.877 INCHES IN
STYLE DESIGNATORPLAIN RING
PITCH DIAMETER13.8527 INCHES NOMINAL IN
NOMINAL OUTSIDE DIAMETER18.625 INCHES IN
END ITEM IDENTIFICATIONTURBINE GEAR TRAIN ASSY
PRESSURE ANGLE20.0000 DEGREES
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3237556?
3237556 is a GEAR,INTERNAL.
What is the NSN for 3237556?
3237556 is cataloged in the U.S. Government catalog under NSN 3020-01-346-4404. 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.