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1366AS642 — EXTENSION SHAFT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1366AS642: EXTENSION SHAFT.

The EXTENSION SHAFT is a the manufacturer industrial component. Key specifications include length: 6.250 INCHES NOMINAL IN, end_type: INTEGRAL COUPLING, material: STEEL, socket_depth: 2.310 INCHES NOMINAL IN, shoulder_length: 4.190 INCHES NOMINAL IN, socket_diameter: 1.562 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-287-7796, 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
1366AS642
NSN: 3040-01-287-7796
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
length6.250 INCHES NOMINAL IN
end_typeINTEGRAL COUPLING
materialSTEEL
socket_depth2.310 INCHES NOMINAL IN
shoulder_length4.190 INCHES NOMINAL IN
socket_diameter1.562 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN
outside_diameter3.250 INCHES NOMINAL IN
shaft_end_designFEMALE
style_designatorPLAIN SOCKET
surface_treatmentCADMIUM
shaft_end_diameter1.558 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
nominal_thread_size0.190 INCHES SCREW HOLE IN
NSN3040-01-287-7796
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available EXTENSION SHAFT TITLE COMPONENT PN 1366AS642 MFR EXTENSION SHAFT
KEY FEATURES
•
SOCKET DIAMETER: 1.562 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN
•
LENGTH: 6.250 INCHES NOMINAL IN
•
SOCKET DEPTH: 2.310 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN SOCKET
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI E4340 ANLD ASSN STD SINGLE MATERIAL RESPONSE
•
OUTSIDE DIAMETER: 3.250 INCHES NOMINAL IN
•
SHAFT END DESIGN: FEMALE
•
SHAFT END DIAMETER: 1.558 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SOCKET DIAMETER1.562 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN
LENGTH6.250 INCHES NOMINAL IN
SOCKET DEPTH2.310 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN SOCKET
MATERIAL DOCUMENT AND CLASSIFICATIONAISI E4340 ANLD ASSN STD SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER3.250 INCHES NOMINAL IN
SHAFT END DESIGNFEMALE
SHAFT END DIAMETER1.558 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.190 INCHES SCREW HOLE IN
SURFACE TREATMENTCADMIUM
OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224
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 1366AS642?
1366AS642 is a EXTENSION SHAFT.
What is the NSN for 1366AS642?
1366AS642 is cataloged in the U.S. Government catalog under NSN 3040-01-287-7796. 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.