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556989 — TIMER ASSEMBLY,DEICER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

556989: TIMER ASSEMBLY,DEICER.

The TIMER ASSEMBLY,DEICER is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: TIMING CYCLE ON 30SEC,OFF 90SEC EA CHANNEL,WIRE INSTALLED PER MS33540CONSISTS OF MS20995C20. This part is cataloged in the U.S.

Government catalog under NSN 1610-00-798-4544, 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
556989
NSN: 1610-00-798-4544
FSC: 1610 — Aircraft Propellers and Components
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
general_characteristics_item_descriptionTIMING CYCLE ON 30SEC,OFF 90SEC EA CHANNEL,WIRE INSTALLED PER MS33540CONSISTS OF MS20995C20
NSN1610-00-798-4544
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TIMER ASSEMBLY,DEICER TITLE COMPONENT PN 556989 MFR TIMER ASSEMBLY,DEICER
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: TIMING CYCLE ON 30SEC,OFF 90SEC EA CHANNEL,WIRE INSTALLED PER MS33540CONSISTS OF MS20995C20
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONTIMING CYCLE ON 30SEC,OFF 90SEC EA CHANNEL,WIRE INSTALLED PER MS33540CONSISTS OF MS20995C20
OTHER ITEMS IN FSC 1610 — Aircraft Propellers and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1610-00-001-4129 1610-00-001-6444 1610-00-003-1552 1610-00-005-8685 1610-00-006-1409 1610-00-006-1410 1610-00-009-6831 1610-00-009-6832
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 556989?
556989 is a TIMER ASSEMBLY,DEICER.
What is the NSN for 556989?
556989 is cataloged in the U.S. Government catalog under NSN 1610-00-798-4544. 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.