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556 103 — SHAFT,VALVE

✓ Government record, cited
bluechip · COMPONENT
PRODUCT OVERVIEW

556 103: SHAFT,VALVE.

The SHAFT,VALVE is a bluechip industrial component. Key specifications include general_characteristics_item_description: STEEL,1.390 IN. LG,0.188 IN.

MAJOR OD,0.093 IN. MINOR OD,USED ON P/N 554290 ACTUATOR IN. This part is cataloged in the U.S.

Government catalog under NSN 1660-00-053-2889, 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
556 103
NSN: 1660-00-053-2889
NIINs: 000532889, 016274091
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL,1.390 IN. LG,0.188 IN. MAJOR OD,0.093 IN. MINOR OD,USED ON P/N 554290 ACTUATOR IN
NSN1660-00-053-2889
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: bluechip SHAFT,VALVE TITLE COMPONENT PN 556 103 MFR bluechip SHAFT,VALVE
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,1.390 IN. LG,0.188 IN. MAJOR OD,0.093 IN. MINOR OD,USED ON P/N 554290 ACTUATOR IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,1.390 IN. LG,0.188 IN. MAJOR OD,0.093 IN. MINOR OD,USED ON P/N 554290 ACTUATOR IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 556 103?
556 103 is a SHAFT,VALVE manufactured by bluechip.
What is the NSN for 556 103?
556 103 is cataloged in the U.S. Government catalog under NSN 1660-00-053-2889. 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.