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Technical Data Sheet
PartsTable / COMPONENT / 118738
118738 ✓ 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: COPPER OVERALL, thickness: 0.032 INCHES NOMINAL IN, hole_diameter: 0.203 INCHES NOMINAL IN, overall_diameter: 0.375 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-262-4806, 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
118738
NSN: 5310-00-262-4806
FSC: 5310
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialCOPPER OVERALL
thickness0.032 INCHES NOMINAL IN
hole_diameter0.203 INCHES NOMINAL IN
overall_diameter0.375 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-262-4806
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 118738 · 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
•
HOLE DIAMETER: 0.203 INCHES NOMINAL IN
•
OVERALL DIAMETER: 0.375 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL: COPPER OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.032 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.203 INCHES NOMINAL IN
OVERALL DIAMETER0.375 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
MATERIALCOPPER OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.032 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
860821Interchangeable
interchangeable cross-reference
interchangeable
11405Interchangeable
interchangeable cross-reference
interchangeable
860821-8Interchangeable
interchangeable cross-reference
interchangeable
1AU42Interchangeable
Same NIIN cross-reference
interchangeable
IAU42Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 118738?
118738 is a WASHER,FLAT.
What parts can replace 118738?
There are 5 known substitutes for 118738: 860821, 11405, 860821-8 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 118738?
118738 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-262-4806. 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