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PartsTable / COMPONENT / C0740100400
C0740100400 ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 1.6 MILLIMETERS NOMINAL MM, hole_diameter: 6.6 MILLIMETERS NOMINAL MM, hardness_rating: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM, overall_diameter: 12.5 MILLIMETERS NOMINAL MM, surface_treatment: ZINC AND PHOSPHATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-275-3318, 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
C0740100400
NSN: 5310-01-275-3318
FSC: 5310
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness1.6 MILLIMETERS NOMINAL MM
hole_diameter6.6 MILLIMETERS NOMINAL MM
hardness_rating38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
overall_diameter12.5 MILLIMETERS NOMINAL MM
surface_treatmentZINC AND PHOSPHATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification3805-01-279-3635
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-275-3318
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C0740100400 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: ZINC AND PHOSPHATE OVERALL
•
HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
•
THICKNESS: 1.6 MILLIMETERS NOMINAL MM
•
OVERALL DIAMETER: 12.5 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
MATERIALSTEEL OVERALL
END ITEM IDENTIFICATION3805-01-279-3635
SURFACE TREATMENTZINC AND PHOSPHATE OVERALL
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
THICKNESS1.6 MILLIMETERS NOMINAL MM
OVERALL DIAMETER12.5 MILLIMETERS NOMINAL MM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER6.6 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
7016842-4Interchangeable
interchangeable cross-reference
interchangeable
7002LInterchangeable
interchangeable cross-reference
interchangeable
MS91418-2AELInterchangeable
interchangeable cross-reference
interchangeable
24M7293Interchangeable
Same NIIN cross-reference
interchangeable
740-1004Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C0740100400?
C0740100400 is a WASHER,FLAT.
What parts can replace C0740100400?
There are 5 known substitutes for C0740100400: 7016842-4, 7002L, MS91418-2AEL and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C0740100400?
C0740100400 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-275-3318. 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