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139C6888 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

139C6888: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 6.660 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES, first_end_style: UNTHREADED CROSS DRILLED, second_end_style: UNTHREADED CROSS DRILLED. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-157-2591, 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
139C6888
NSN: 3040-00-157-2591
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 05606 — GENERAL DYNAMICS-OTS, INC. DIV ORDNANCE AND TACTICAL SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL
step_quantity2
end_similarityNOT IDENTICAL
overall_length6.660 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES
first_end_styleUNTHREADED CROSS DRILLED
second_end_styleUNTHREADED CROSS DRILLED
first_end_diameter0.2500 INCHES NOMINAL IN
second_end_diameter0.3750 INCHES NOMINAL IN
first_end_hole_depth0.250 INCHES NOMINAL IN
fsc_application_dataINTERFACE ASSY,LOAD
largest_step_diameter0.375 INCHES NOMINAL IN
NSN3040-00-157-2591
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 139C6888 MFR SHAFT,SHOULDERED
KEY FEATURES
•
SURFACE FINISH: 125.0 MICROINCHES
•
FSC APPLICATION DATA: INTERFACE ASSY,LOAD
•
SECOND END HOLE DIAMETER: 0.1255 INCHES NOMINAL IN
•
STEP QUANTITY: 2
•
FIRST END DIAMETER: 0.2500 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.3750 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 0.375 INCHES NOMINAL IN
•
FIRST END HOLE DEPTH: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES
FSC APPLICATION DATAINTERFACE ASSY,LOAD
SECOND END HOLE DIAMETER0.1255 INCHES NOMINAL IN
STEP QUANTITY2
FIRST END DIAMETER0.2500 INCHES NOMINAL IN
SECOND END DIAMETER0.3750 INCHES NOMINAL IN
LARGEST STEP DIAMETER0.375 INCHES NOMINAL IN
FIRST END HOLE DEPTH0.250 INCHES NOMINAL IN
FIRST END STYLEUNTHREADED CROSS DRILLED
OVERALL LENGTH6.660 INCHES NOMINAL IN
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 139C6888?
139C6888 is a SHAFT,SHOULDERED.
What is the NSN for 139C6888?
139C6888 is cataloged in the U.S. Government catalog under NSN 3040-00-157-2591. 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.