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Technical Data Sheet
PartsTable / COMPONENT / 21211D
21211D ✓ 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 PLATE,STRUCTURAL,AIRCRAFT is a the manufacturer industrial component. Key specifications include end_item_identification: FSCM30377 P/N C21210. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-358-5127, 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
21211D
NSN: 5315-00-358-5127
FSC: 5315
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
end_item_identificationFSCM30377 P/N C21210
NSN5315-00-358-5127
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 21211D · 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 10
950166Interchangeable
interchangeable cross-reference
interchangeable
A26108Interchangeable
interchangeable cross-reference
interchangeable
MHFF-14Interchangeable
interchangeable cross-reference
interchangeable
C120SET8Interchangeable
interchangeable cross-reference
interchangeable
CP120 MATCHED SET 8Interchangeable
interchangeable cross-reference
interchangeable
C120-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21211D?
21211D is a PLATE,STRUCTURAL,AIRCRAFT.
What parts can replace 21211D?
There are 10 known substitutes for 21211D: 950166, A26108, MHFF-14 and 7 more. Substitute compatibility should be verified for your specific system.
Is 21211D still available?
21211D is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026