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Y18697K ✓ 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: PLASTIC OVERALL, thickness: 0.031 INCHES NOMINAL IN, hole_diameter: 0.281 INCHES NOMINAL IN, overall_diameter: 0.563 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 5310-00-095-4383, 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
Y18697K
NSN: 5310-00-095-4383
FSC: 5310
CAGE: 64104 — DRESSER, LLC (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
thickness0.031 INCHES NOMINAL IN
hole_diameter0.281 INCHES NOMINAL IN
overall_diameter0.563 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationNSN 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM); NSN 2320-01-318-9902 HET (HEAVY EQUIPMENT TRANSPORTER)
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-095-4383
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: Y18697K · 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
•
OVERALL DIAMETER: 0.563 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.281 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.031 INCHES NOMINAL IN
•
MATERIAL: PLASTIC OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.563 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
END ITEM IDENTIFICATIONNSN 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM); NSN 2320-01-318-9902 HET (HEAVY EQUIPMENT TRANSPORTER)
HOLE DIAMETER0.281 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.031 INCHES NOMINAL IN
MATERIALPLASTIC OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
6052SRInterchangeable
interchangeable cross-reference
interchangeable
T5372Interchangeable
interchangeable cross-reference
interchangeable
M1520-806210Interchangeable
Same NIIN cross-reference
interchangeable
2HP891Interchangeable
Same NIIN cross-reference
interchangeable
202207Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Y18697K?
Y18697K is a WASHER,FLAT.
What parts can replace Y18697K?
There are 5 known substitutes for Y18697K: 6052SR, T5372, M1520-806210 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for Y18697K?
Y18697K is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-095-4383. 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