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R18495 ✓ 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 KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 0.375 INCHES NOMINAL IN, overall_height: 0.750 INCHES NOMINAL IN, overall_length: 2.500 INCHES NOMINAL IN, style_designator: PLAIN, starting_edge_shape: STRAIGHT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-193-9155, 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
R18495
NSN: 5315-00-193-9155
FSC: 5315
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.375 INCHES NOMINAL IN
overall_height0.750 INCHES NOMINAL IN
overall_length2.500 INCHES NOMINAL IN
style_designatorPLAIN
starting_edge_shapeSTRAIGHT
NSN5315-00-193-9155
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R18495 · 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
•
STARTING EDGE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STARTING EDGE SHAPESTRAIGHT
OVERALL LENGTH2.500 INCHES NOMINAL IN
OVERALL HEIGHT0.750 INCHES NOMINAL IN
OVERALL WIDTH0.375 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
A85X51M0DEL321Interchangeable
interchangeable cross-reference
interchangeable
18495Interchangeable
interchangeable cross-reference
interchangeable
41126Interchangeable
interchangeable cross-reference
interchangeable
984862-1BInterchangeable
interchangeable cross-reference
interchangeable
GMC20080002Interchangeable
interchangeable cross-reference
interchangeable
20-08-0002Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R18495?
R18495 is a KEY,MACHINE.
What parts can replace R18495?
There are 7 known substitutes for R18495: A85X51M0DEL321, 18495, 41126 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R18495?
R18495 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-193-9155. 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