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PartsTable / COMPONENT / 66-939
66-939 ✓ Verified by PartsTable
Clementoni · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

- A truly unique science kit for discovering the principles of physics in an easy and fun way!<br>- Use the accelerator to shoot the marbles down the track and defy the laws of gravity with the loop-the-loop!<br>- The manual will guide you step-by-step through endless fun! This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-350-4060, 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
66-939
NSN: 5310-00-350-4060
FSC: 5310
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialGLASS BOROSILICATE
overall_length250.00 MILLIMETERS NOMINAL MM
style_designatorSQUARE TOP ROUND BOTTOM
calibration_functionTO CONTAIN
primary_container_typeBOX
primary_container_unit_quantity1
NSN5310-00-350-4060
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 66-939 · Clementoni ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
DM6633ALTFPC6Interchangeable
interchangeable cross-reference
interchangeable
5-8INBALLGRADE2SInterchangeable
interchangeable cross-reference
interchangeable
66-939Interchangeable
interchangeable cross-reference
interchangeable
200605Interchangeable
interchangeable cross-reference
interchangeable
206-029AInterchangeable
interchangeable cross-reference
interchangeable
B154576Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 66-939?
66-939 is a 66-939 manufactured by Clementoni.
What parts can replace 66-939?
There are 6 known substitutes for 66-939: DM6633ALTFPC6, 5-8INBALLGRADE2S, 66-939 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 66-939?
66-939 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-350-4060. 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