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PartsTable / COMPONENT / 17560-3
17560-3 ✓ 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

TRANSMISSION,MECHANICAL,VEHICULA. Key specifications include height: 0.090 INCHES NOMINAL IN, diameter: 0.495 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN, material: STEEL COMP 8630 OVERALL, head_style: FLAT, surface_finish: 100.0 MICROINCHES OVERALL, undercut_width: 0.039 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-205-0017, 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
17560-3
NSN: 5315-00-205-0017
FSC: 5315
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
height0.090 INCHES NOMINAL IN
diameter0.495 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN
materialSTEEL COMP 8630 OVERALL
head_styleFLAT
surface_finish100.0 MICROINCHES OVERALL
undercut_width0.039 INCHES NOMINAL IN
first_end_styleCHAMFERED
effective_length1.675 INCHES NOMINAL IN
style_designatorGROOVE
pin_head_diameter0.625 INCHES NOMINAL IN
under_head_length1.820 INCHES NOMINAL IN
undercut_diameter0.468 INCHES NOMINAL IN
NSN5315-00-205-0017
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 17560-3 · 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
•
UNDER HEAD LENGTH: 1.820 INCHES NOMINAL IN
•
PIN HEAD DIAMETER: 0.625 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
UNDERCUT WIDTH: 0.039 INCHES NOMINAL IN
•
HEAD STYLE: FLAT
•
UNDERCUT DIAMETER: 0.468 INCHES NOMINAL IN
•
DIAMETER: 0.495 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN
•
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
UNDER HEAD LENGTH1.820 INCHES NOMINAL IN
PIN HEAD DIAMETER0.625 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
UNDERCUT WIDTH0.039 INCHES NOMINAL IN
HEAD STYLEFLAT
UNDERCUT DIAMETER0.468 INCHES NOMINAL IN
DIAMETER0.495 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HEIGHT0.090 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
15199-1Interchangeable
interchangeable cross-reference
interchangeable
17560-3Interchangeable
interchangeable cross-reference
interchangeable
17560-1Interchangeable
interchangeable cross-reference
interchangeable
949792Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 17560-3?
17560-3 is a TRANSMISSION,MECHANICAL,VEHICULA.
What parts can replace 17560-3?
There are 4 known substitutes for 17560-3: 15199-1, 17560-3, 17560-1 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 17560-3?
17560-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-205-0017. 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