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TLB423 — SPROCKET WHEEL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

TLB423: SPROCKET WHEEL.

The SPROCKET WHEEL is a the manufacturer industrial component. Key specifications include material: STEEL, bore_type: STRAIGHT SPLINE, face_width: 0.284 INCHES NOMINAL IN, bore_length: 1.000 INCHES NOMINAL IN, design_form: PLAIN, overall_length: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-080-0635, 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
TLB423
NSN: 3020-00-080-0635
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 71956 — RELIANCE ELECTRIC COMPANY DBA RELIANCE & DODGE BRANDS (USA)
SPECIFICATIONS
materialSTEEL
bore_typeSTRAIGHT SPLINE
face_width0.284 INCHES NOMINAL IN
bore_length1.000 INCHES NOMINAL IN
design_formPLAIN
overall_length1.000 INCHES NOMINAL IN
pitch_diameter3.672 INCHES NOMINAL IN
outside_diameter3.938 INCHES NOMINAL IN
style_designatorPLAIN
teeth_row_quantity1
hub_outside_diameter3.000 INCHES NOMINAL AA END IN
teeth_quantity_per_row23
NSN3020-00-080-0635
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPROCKET WHEEL TITLE COMPONENT PN TLB423 MFR SPROCKET WHEEL
KEY FEATURES
•
HUB OUTSIDE DIAMETER: 3.000 INCHES NOMINAL AA END IN
•
BORE LENGTH: 1.000 INCHES NOMINAL IN
•
DESIGN FORM: PLAIN
•
ASA STANDARD CHAIN NUMBER: 40 1/2
•
OUTSIDE DIAMETER: 3.938 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
PITCH DIAMETER: 3.672 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HUB OUTSIDE DIAMETER3.000 INCHES NOMINAL AA END IN
BORE LENGTH1.000 INCHES NOMINAL IN
DESIGN FORMPLAIN
ASA STANDARD CHAIN NUMBER40 1/2
OUTSIDE DIAMETER3.938 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
PITCH DIAMETER3.672 INCHES NOMINAL IN
OVERALL LENGTH1.000 INCHES NOMINAL IN
BORE TYPESTRAIGHT SPLINE
TEETH ROW QUANTITY1
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.
3020-00-001-2090 3020-00-001-4468 3020-00-007-2779 3020-00-009-4033 3020-00-031-2269 3020-00-146-4181 3020-00-146-4222 3020-00-425-7115
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TLB423?
TLB423 is a SPROCKET WHEEL.
What is the NSN for TLB423?
TLB423 is cataloged in the U.S. Government catalog under NSN 3020-00-080-0635. 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.