The SHAFT,SHOULDERED is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 3040-00-451-8780, 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.
SLEEVE,SAFING MECHANISM;STEEL,CORROSION RESISTANT;2.243 IN. LG,0.749 IN. DIA,1ST END;1.250 IN. DIA,2ND END;SLOT THRU CENTER,1ST END,0.880 IN. LG,0.565 IN. DIA IN
NSN
3040-00-451-8780
COMPONENT DIAGRAM
KEY FEATURES
•
SURFACE FINISH: 63.0 MICROINCHES
•
STEP QUANTITY: 2
•
FIRST END DIAMETER: 0.7874 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.7874 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 1.100 INCHES NOMINAL IN
•
SECOND END SPLINE MINOR DIAMETER: 0.3952 INCHES MINIMUM AND 0.4049 INCHES MAXIMUM IN
•
FIRST END STYLE: PLAIN
•
CRITICALITY CODE JUSTIFICATION: MATT
TECHNICAL CHARACTERISTICS
SURFACE FINISH
63.0 MICROINCHES
STEP QUANTITY
2
FIRST END DIAMETER
0.7874 INCHES NOMINAL IN
SECOND END DIAMETER
0.7874 INCHES NOMINAL IN
LARGEST STEP DIAMETER
1.100 INCHES NOMINAL IN
SECOND END SPLINE MINOR DIAMETER
0.3952 INCHES MINIMUM AND 0.4049 INCHES MAXIMUM IN
FIRST END STYLE
PLAIN
CRITICALITY CODE JUSTIFICATION
MATT
SECOND END SPLINE MAJOR DIAMETER
0.4970 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
OVERALL LENGTH
7.536 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES
No substitute or cross-reference records for this part.
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 78684?
78684 is a SHAFT,SHOULDERED.
What is the NSN for 78684?
78684 is cataloged in the U.S. Government catalog under NSN 3040-00-451-8780. This indicates validated use in U.S. government and defense supply chains.
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