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6766398 — SUPPORT,TRANSMISSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

6766398: SUPPORT,TRANSMISSION.

The SUPPORT,TRANSMISSION is a the manufacturer industrial component. Key specifications include end_item_identification: 2520-00-692-5273. This part is cataloged in the U.S.

Government catalog under NSN 2520-00-692-5273, 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
6766398
NSN: 2520-00-692-5273
FSC: 2520 — Vehicular Power Transmission Components
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
end_item_identification2520-00-692-5273
NSN2520-00-692-5273
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SUPPORT,TRANSMISSION TITLE COMPONENT PN 6766398 MFR SUPPORT,TRANSMISSION
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL ALLOY COMP 8640,3.606 M 3.611 P OUTSIDE DIA,3.5625 IS PITCH DIA ON EXTERNAL SPLINE A,0.500 PITCH,57 TEETH,30.0 DEGREE PRESSURE ANGLE,CHORDAL TOOTH THICKNESS AT PL 0.0971 M0.0981 P CUT TO GAGE,2.010 M 2.011 P IS INSIDE DIA,2.0625 PITCH DIA FOR INTERNAL SPLINE B,0.500 PITCH 33 TEETH,30.0 DEGREE PRESSURE ANGLE,CHORDAL SPACE WIDTH AT RL 0.0981 M 0.1001 P CUT TO GAGE,TRUE INVOLUTE OUTSIDE 3.501 DIA,TRUE INVOLUTE INSIDE2.125 DIA,1.375 M 1.377 P IN. W,PITCH DIA OF SPLINE A MUST BE CONCENTRIC WITH PITCH DIA OF SPLINE B WITHIN 0.003 TIR
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL ALLOY COMP 8640,3.606 M 3.611 P OUTSIDE DIA,3.5625 IS PITCH DIA ON EXTERNAL SPLINE A,0.500 PITCH,57 TEETH,30.0 DEGREE PRESSURE ANGLE,CHORDAL TOOTH THICKNESS AT PL 0.0971 M0.0981 P CUT TO GAGE,2.010 M 2.011 P IS INSIDE DIA,2.0625 PITCH DIA FOR INTERNAL SPLINE B,0.500 PITCH 33 TEETH,30.0 DEGREE PRESSURE ANGLE,CHORDAL SPACE WIDTH AT RL 0.0981 M 0.1001 P CUT TO GAGE,TRUE INVOLUTE OUTSIDE 3.501 DIA,TRUE INVOLUTE INSIDE2.125 DIA,1.375 M 1.377 P IN. W,PITCH DIA OF SPLINE A MUST BE CONCENTRIC WITH PITCH DIA OF SPLINE B WITHIN 0.003 TIR
END ITEM IDENTIFICATION2520-00-692-5273
OTHER ITEMS IN FSC 2520 — Vehicular Power Transmission Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2520-00-005-4937 2520-00-006-6257 2520-00-008-9977 2520-00-039-6567 2520-00-242-3316 2520-00-358-3905 2520-00-366-7191 2520-00-708-6603
SUBSTITUTES & CROSS-REFERENCES 1
2520006925273Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 6766398?
6766398 is a SUPPORT,TRANSMISSION.
What parts can replace 6766398?
There is 1 known substitute for 6766398: 2520006925273. Substitute compatibility should be verified for your specific system.
What is the NSN for 6766398?
6766398 is cataloged in the U.S. Government catalog under NSN 2520-00-692-5273. 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.