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C306-9 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

C306-9: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include end_item_identification: USED ON F111 AIRCRAFT. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-935-8964, 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
C306-9
NSN: 5310-00-935-8964
FSC: 5310 — Nuts and Washers
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
end_item_identificationUSED ON F111 AIRCRAFT
NSN5310-00-935-8964
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C306-9 · OEM ⚠ 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONUSED ON F111 AIRCRAFT
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 3
FNF26-918Reference document
Same NSN cross-reference
Reference document — Secondary reference
VN416-C-090Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LH7896-9Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is C306-9?
C306-9 is a NUT,SELF-LOCKING,EXTENDED WASHER.
What parts can replace C306-9?
There are 3 known substitutes for C306-9: FNF26-918, VN416-C-090, LH7896-9. Substitute compatibility should be verified for your specific system.
What is the NSN for C306-9?
C306-9 is cataloged in the U.S. Government catalog under NSN 5310-00-935-8964. This indicates validated use in U.S. government and defense supply chains.
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