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Technical Data Sheet
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640778 — SPACER,RING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

640778: SPACER,RING.

The SPACER,RING is a the manufacturer industrial component. Key specifications include special_features: LOCAL PURCHASE. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-769-7427, 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
640778
NSN: 5365-00-769-7427
NIINs: 007697427, 015888017
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
special_featuresLOCAL PURCHASE
NSN5365-00-769-7427
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPACER,RING TITLE COMPONENT PN 640778 MFR SPACER,RING
KEY FEATURES
•
OUTSIDE DIAMETER: 0.962 INCHES NOMINAL IN
•
OVERALL THICKNESS: 0.048 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.765 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER0.962 INCHES NOMINAL IN
OVERALL THICKNESS0.048 INCHES NOMINAL IN
INSIDE DIAMETER0.765 INCHES NOMINAL IN
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
T86D29Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 640778?
640778 is a SPACER,RING.
What parts can replace 640778?
There is 1 known substitute for 640778: T86D29. Substitute compatibility should be verified for your specific system.
What is the NSN for 640778?
640778 is cataloged in the U.S. Government catalog under NSN 5365-00-769-7427. 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.