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6663K21 — SPROCKET WHEEL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

6663K21: SPROCKET WHEEL.

The SPROCKET WHEEL is a the manufacturer industrial component. Key specifications include material: STEEL, face_width: 0.375 INCHES NOMINAL IN, tooth_pitch: 0.375 INCHES NOMINAL IN, outside_diameter: 2.470 INCHES NOMINAL IN, special_features: ROLLER CHAIN IDLER SPROCKET WTIH BALL BEARING FOR NO. 35 CHAIN, style_designator: PLAIN.

This part is cataloged in the U.S. Government catalog under NSN 3020-01-596-0079, 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
6663K21
NSN: 3020-01-596-0079
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
materialSTEEL
face_width0.375 INCHES NOMINAL IN
tooth_pitch0.375 INCHES NOMINAL IN
outside_diameter2.470 INCHES NOMINAL IN
special_featuresROLLER CHAIN IDLER SPROCKET WTIH BALL BEARING FOR NO. 35 CHAIN
style_designatorPLAIN
hub_outside_diameter0.375 INCHES NOMINAL BOTH ENDS IN
teeth_quantity_per_row19
part_name_assigned_by_controlling_agencyROLLER CHAIN SOCKET
NSN3020-01-596-0079
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPROCKET WHEEL TITLE COMPONENT PN 6663K21 MFR SPROCKET WHEEL
KEY FEATURES
•
HUB OUTSIDE DIAMETER: 0.375 INCHES NOMINAL BOTH ENDS IN
•
TOOTH PITCH: 0.375 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.470 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
TEETH QUANTITY PER ROW: 19
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
HUB OUTSIDE DIAMETER0.375 INCHES NOMINAL BOTH ENDS IN
TOOTH PITCH0.375 INCHES NOMINAL IN
OUTSIDE DIAMETER2.470 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
TEETH QUANTITY PER ROW19
SPECIAL FEATURESROLLER CHAIN IDLER SPROCKET WTIH BALL BEARING FOR NO. 35 CHAIN
PART NAME ASSIGNED BY CONTROLLING AGENCYROLLER CHAIN SOCKET
MATERIALSTEEL
FACE WIDTH0.375 INCHES NOMINAL 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 6663K21?
6663K21 is a SPROCKET WHEEL.
What is the NSN for 6663K21?
6663K21 is cataloged in the U.S. Government catalog under NSN 3020-01-596-0079. 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.