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PartsTable / COMPONENT / RC4205H PIECE 268
RC4205H PIECE 268 ✓ Verified by PartsTable
— · 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

The NUTSELF-LOCKING is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-217-3783, 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
RC4205H PIECE 268
NSN: 5310-01-217-3783
FSC: 5310
CAGE: 55102 — CONTINENTAL EMSCO CO SKAGIT PRODUCTS DIV (USA)
SPECIFICATIONS
Part NumberRC4205H PIECE 268
NSN5310-01-217-3783
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: RC4205H PIECE 268 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
N-22Interchangeable
interchangeable cross-reference
interchangeable
EFE3ZInterchangeable
interchangeable cross-reference
interchangeable
CFE3Interchangeable
interchangeable cross-reference
interchangeable
11016-22Interchangeable
interchangeable cross-reference
interchangeable
MEJ87893-1Interchangeable
interchangeable cross-reference
interchangeable
11746906Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RC4205H PIECE 268?
RC4205H PIECE 268 is a NUTSELF-LOCKING.
What parts can replace RC4205H PIECE 268?
There are 8 known substitutes for RC4205H PIECE 268: N-22, EFE3Z, CFE3 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RC4205H PIECE 268?
RC4205H PIECE 268 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-217-3783. 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