PartsTable
Technical Data Sheet
11Y9009 ✓ 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 COMP 1020 OVERALL, thickness: 0.187 INCHES NOMINAL IN, hole_diameter: 1.281 INCHES NOMINAL IN, hardness_rating: 51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM, overall_diameter: 2.625 INCHES NOMINAL IN, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-038-4317, 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
11Y9009
NSN: 5310-00-038-4317
FSC: 5310
CAGE: 05415 — LINDE LIFT TRUCK CORP. (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
thickness0.187 INCHES NOMINAL IN
hole_diameter1.281 INCHES NOMINAL IN
hardness_rating51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
overall_diameter2.625 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-038-4317
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11Y9009 · 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
MATERIAL: STEEL COMP 1020 OVERALL
PERIPHERAL SHAPE STYLE: ROUND
THICKNESS: 0.187 INCHES NOMINAL IN
OVERALL DIAMETER: 2.625 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLE: ROUND
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
HARDNESS RATING: 51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 1020 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.187 INCHES NOMINAL IN
OVERALL DIAMETER2.625 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HOLE DIAMETER1.281 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
559-1561-069Interchangeable
interchangeable cross-reference
interchangeable
55-0382-6825CSInterchangeable
interchangeable cross-reference
interchangeable
5M.5102.228.18Interchangeable
interchangeable cross-reference
interchangeable
9000S6401-74219PC3Interchangeable
interchangeable cross-reference
interchangeable
9S4536LPC14Interchangeable
interchangeable cross-reference
interchangeable
10268-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11Y9009?
11Y9009 is a WASHER,FLAT.
What parts can replace 11Y9009?
There are 7 known substitutes for 11Y9009: 559-1561-069, 55-0382-6825CS, 5M.5102.228.18 and 4 more. Substitute compatibility should be verified for your specific system.
Is 11Y9009 still available?
11Y9009 is currently cancelled.
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