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553-9647-003 — GEAR,HELICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

553-9647-003: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, body_style: WEBBED, OFFSET, SOLID, bore_style: PLAIN BOTH ENDS, teeth_type: SINGLE HELIX, tooth_form: SPECIAL, helix_angle: 18.0000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-945-0087, 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
553-9647-003
NSN: 3020-00-945-0087
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
body_styleWEBBED, OFFSET, SOLID
bore_stylePLAIN BOTH ENDS
teeth_typeSINGLE HELIX
tooth_formSPECIAL
helix_angle18.0000 DEGREES
pitch_diameter0.6730 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity42
tooth_directionLEFT
style_designatorHUBLESS, RECESSED BODY
face_nominal_width0.078 INCHES IN
NSN3020-00-945-0087
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,HELICAL TITLE COMPONENT PN 553-9647-003 MFR GEAR,HELICAL
KEY FEATURES
•
BORE NOMINAL DIAMETER: 0.2500 INCHES BOTH ENDS IN
•
HELIX ANGLE: 18.0000 DEGREES
•
TEETH QUANTITY: 42
•
BODY STYLE: WEBBED, OFFSET, SOLID
•
TOOTH DIRECTION: LEFT
•
BORE STYLE: PLAIN BOTH ENDS
•
TEETH TYPE: SINGLE HELIX
•
STYLE DESIGNATOR: HUBLESS, RECESSED BODY
TECHNICAL CHARACTERISTICS
BORE NOMINAL DIAMETER0.2500 INCHES BOTH ENDS IN
HELIX ANGLE18.0000 DEGREES
TEETH QUANTITY42
BODY STYLEWEBBED, OFFSET, SOLID
TOOTH DIRECTIONLEFT
BORE STYLEPLAIN BOTH ENDS
TEETH TYPESINGLE HELIX
STYLE DESIGNATORHUBLESS, RECESSED BODY
PITCH DIAMETER0.6730 INCHES NOMINAL IN
TOOTH FORMSPECIAL
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)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 553-9647-003?
553-9647-003 is a GEAR,HELICAL.
What is the NSN for 553-9647-003?
553-9647-003 is cataloged in the U.S. Government catalog under NSN 3020-00-945-0087. 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.