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6556-02 — 6556-02

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

6556-02: 6556-02.

The 6556-02 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 6645-01-431-3602, 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
6556-02
NSN: 6645-01-431-3602
FSC: 6645 — Time Measuring Instruments
CAGE: 22501 — HOWELL LABORATORIES INC DBA HOWELL LABORATORIES INC (USA)
SPECIFICATIONS
Part Number6556-02
NSN6645-01-431-3602
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 6556-02 TITLE COMPONENT PN 6556-02 MFR 6556-02
KEY FEATURES
•
RESET TYPE: MANUAL
•
TIMER TYPE: MECHANICAL
•
FURNISHED ITEMS: AUTOMATIC ELECTRIC CIRCUIT CONTROL SWITCH
TECHNICAL CHARACTERISTICS
RESET TYPEMANUAL
TIMER TYPEMECHANICAL
SPECIAL FEATURESCOUNTDOWN TIMER;SETABLE.
END ITEM IDENTIFICATIONSTARTEGIC SEALIFT CONVERSION SHIPS CLASS;ELECTRICAL PANEL ASSY.
FURNISHED ITEMSAUTOMATIC ELECTRIC CIRCUIT CONTROL SWITCH
OTHER ITEMS IN FSC 6645 — Time Measuring Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6645-00-001-1256 6645-00-001-4498 6645-00-001-4584 6645-00-001-9400 6645-00-003-0327 6645-00-003-0328 6645-00-003-0337 6645-00-003-0338
SUBSTITUTES & CROSS-REFERENCES 3
6556B-02Reference document
Same NSN cross-reference
Reference document — Secondary reference
AB4 6A6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
6720ITEM21Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
HAZMAT per U.S. Government catalogAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6556-02?
6556-02 is a 6556-02.
What parts can replace 6556-02?
There are 3 known substitutes for 6556-02: 6556B-02, AB4 6A6, 6720ITEM21. Substitute compatibility should be verified for your specific system.
What is the NSN for 6556-02?
6556-02 is cataloged in the U.S. Government catalog under NSN 6645-01-431-3602. 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.