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12780-1 — SHAFT,SHOULDERED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

12780-1: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416, end_similarity: NOT IDENTICAL, overall_length: 2.875 INCHES NOMINAL IN, first_end_style: PLAIN, second_end_style: SLOTTED, first_end_diameter: 0.1860 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-671-1170, 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
12780-1
NSN: 3040-00-671-1170
NIINs: 006711170, 009220902, 012931867
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 416
step_quantity6
end_similarityNOT IDENTICAL
overall_length2.875 INCHES NOMINAL IN
first_end_stylePLAIN
second_end_styleSLOTTED
first_end_diameter0.1860 INCHES NOMINAL IN
second_end_diameter0.1835 INCHES MINIMUM AND 0.1855 INCHES MAXIMUM IN
largest_step_diameter0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
second_end_slot_depth0.040 INCHES NOMINAL IN
second_end_slot_width0.040 INCHES NOMINAL IN
NSN3040-00-671-1170
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,SHOULDERED TITLE COMPONENT PN 12780-1 MFR SHAFT,SHOULDERED
KEY FEATURES
•
STEP QUANTITY: 6
•
FIRST END DIAMETER: 0.1860 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.1835 INCHES MINIMUM AND 0.1855 INCHES MAXIMUM IN
•
LARGEST STEP DIAMETER: 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
•
FIRST END STYLE: PLAIN
•
SECOND END SLOT DEPTH: 0.040 INCHES NOMINAL IN
•
END SIMILARITY: NOT IDENTICAL
TECHNICAL CHARACTERISTICS
STEP QUANTITY6
FIRST END DIAMETER0.1860 INCHES NOMINAL IN
SECOND END DIAMETER0.1835 INCHES MINIMUM AND 0.1855 INCHES MAXIMUM IN
LARGEST STEP DIAMETER0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
FIRST END STYLEPLAIN
OVERALL LENGTH2.875 INCHES NOMINAL IN
SECOND END SLOT DEPTH0.040 INCHES NOMINAL IN
END SIMILARITYNOT IDENTICAL
SECOND END SLOT WIDTH0.040 INCHES NOMINAL IN
SECOND END STYLESLOTTED
SUBSTITUTES & CROSS-REFERENCES 1
543-0780-002Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 12780-1?
12780-1 is a SHAFT,SHOULDERED.
What parts can replace 12780-1?
There is 1 known substitute for 12780-1: 543-0780-002. Substitute compatibility should be verified for your specific system.
What is the NSN for 12780-1?
12780-1 is cataloged in the U.S. Government catalog under NSN 3040-00-671-1170. 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.