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PartsTable / COMPONENT / 1120-12CPDD
1120-12CPDD ✓ 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 WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.380 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN, outside_diameter: 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN, style_designator: FLAT EXTERNAL TEETH, material_thickness: 0.015 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-006-2395, 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
1120-12CPDD
NSN: 5310-00-006-2395
FSC: 5310
CAGE: 78189 — ITW SHAKEPROOF AUTOMOTIVE PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.380 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN
outside_diameter0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
style_designatorFLAT EXTERNAL TEETH
material_thickness0.015 INCHES NOMINAL IN
NSN5310-00-006-2395
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1120-12CPDD · 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
KEY FEATURES
•
MATERIAL: STEEL OVERALL
•
OUTSIDE DIAMETER: 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: FLAT EXTERNAL TEETH
•
HOLE DIAMETER: 0.380 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.015 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
STYLE DESIGNATORFLAT EXTERNAL TEETH
HOLE DIAMETER0.380 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN
MATERIAL THICKNESS0.015 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
112012Interchangeable
interchangeable cross-reference
interchangeable
P17907Interchangeable
interchangeable cross-reference
interchangeable
G210729-1Interchangeable
interchangeable cross-reference
interchangeable
6520-111-12Interchangeable
interchangeable cross-reference
interchangeable
C3926PAPXInterchangeable
interchangeable cross-reference
interchangeable
E-2754 ITEM 59Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1120-12CPDD?
1120-12CPDD is a WASHER,LOCK.
What parts can replace 1120-12CPDD?
There are 7 known substitutes for 1120-12CPDD: 112012, P17907, G210729-1 and 4 more. Substitute compatibility should be verified for your specific system.
Is 1120-12CPDD still available?
1120-12CPDD 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