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305-18 ✓ Verified by PartsTable
Aquabeads · FAN MODULE
WHAT YOU NEED TO KNOW
Hot-plug fans can be replaced without shutdown Dual-rotor = higher CFM for high-power configs (GPU, dense storage)
AIRFLOW DIRECTION IS CRITICAL — reversed fan = thermal shutdown
PRODUCT OVERVIEW

Write your name and favorite numbers with Aquabeads with this ABC & 123 Template Sheet set. It includes ten template sheets. A great addition to your Aquabeads sets.

Write, spray with water and they stay, without using an iron or glue. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-323-8365, 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
305-18
NSN: 5999-00-323-8365
FSC: 5999
CAGE: 07148 — UNITED TECHNOLOGIES CORP HAMILTON SUNDSTRAND CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
face_width0.500 INCHES NOMINAL IN
tooth_typeINTEGRAL
constructionSOLID
overall_length18.000 INCHES NOMINAL IN
first_end_styleCHAMFERED
outside_diameter4.000 INCHES NOMINAL IN
second_end_styleRADIUS
tooth_arrangementSTRAIGHT
pin_overall_length2.250 INCHES NOMINAL IN
pin_overall_diameter0.3759 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN
first_end_taper_length0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
NSN5999-00-323-8365
COMPONENT DIAGRAM
HANDLE 60mm 60mm HOT-PLUG COOL IN HOT OUT DUAL ROTOR HOT-SWAP FAN MODULE | 60mm Dual Rotor | FRONT-TO-BACK Hot-plug | Redundant | TITLE FAN MODULE PN 305-18 MFR Aquabeads HEAT SINK,ELECTRICAL-ELECTRONIC
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESTHERMA-FILM
SPECIAL FEATURESTHERMA-FILM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
B94.19 TABLE 4Interchangeable
interchangeable cross-reference
interchangeable
ASME B94.19Interchangeable
interchangeable cross-reference
interchangeable
305-18Interchangeable
interchangeable cross-reference
interchangeable
914109Interchangeable
interchangeable cross-reference
interchangeable
2352T2Interchangeable
interchangeable cross-reference
interchangeable
LOCTITE SUPERFLEX BLUE RTVInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 305-18?
305-18 is a HEAT SINK,ELECTRICAL-ELECTRONIC manufactured by Aquabeads.
What parts can replace 305-18?
There are 12 known substitutes for 305-18: B94.19 TABLE 4, ASME B94.19, 305-18 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 305-18?
305-18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-323-8365. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026