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T406-1 — SYNCHRONIZER AND SLIDING CLUTCH

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

T406-1: SYNCHRONIZER AND SLIDING CLUTCH.

SYNCHRONIZER AND SLIDING CLUTCH. Key specifications include end_item_identification: INTERNATIONAL HARVESTER MDL MT122. This part is cataloged in the U.S.

Government catalog under NSN 2520-00-734-7587, 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
T406-1
NSN: 2520-00-734-7587
FSC: 2520 — Vehicular Power Transmission Components
CAGE: 31204 — PERFECTION CLUTCH (USA)
SPECIFICATIONS
end_item_identificationINTERNATIONAL HARVESTER MDL MT122
NSN2520-00-734-7587
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SYNCHRONIZER AND SLIDING CLUTCH TITLE COMPONENT PN T406-1 MFR SYNCHRONIZER AND SLIDI
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CONSISTS OF STEEL SLIDING CLUTCH,SIX BLOCKER PINS AND SPRINGS,TWO BRASS SYNCHROMIZE PLATES; 3.525 IN. O/A LG; 7.125 N. LARGEST OD; INCLUDES SPLINED BORE 3.704 IN. MAJOR DIA,25 TEETH,,20 DEG TOOTH PRESSURE ANGLE IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCONSISTS OF STEEL SLIDING CLUTCH,SIX BLOCKER PINS AND SPRINGS,TWO BRASS SYNCHROMIZE PLATES; 3.525 IN. O/A LG; 7.125 N. LARGEST OD; INCLUDES SPLINED BORE 3.704 IN. MAJOR DIA,25 TEETH,,20 DEG TOOTH PRESSURE ANGLE IN
END ITEM IDENTIFICATIONINTERNATIONAL HARVESTER MDL MT122
SUBSTITUTES & CROSS-REFERENCES 7
310227XReference document
Same NSN cross-reference
Reference document — Secondary reference
SYN0071Reference document
Same NSN cross-reference
Reference document — Secondary reference
7975XReference document
Same NSN cross-reference
Reference document — Secondary reference
KC2560Reference document
Same NSN cross-reference
Reference document — Secondary reference
2345402Reference document
Same NSN cross-reference
Reference document — Secondary reference
7347587Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 T406-1?
T406-1 is a SYNCHRONIZER AND SLIDING CLUTCH.
What parts can replace T406-1?
There are 7 known substitutes for T406-1: 310227X, SYN0071, 7975X and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for T406-1?
T406-1 is cataloged in the U.S. Government catalog under NSN 2520-00-734-7587. 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.