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Technical Data Sheet
PartsTable / COMPONENT / W09
W09 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, hole_diameter: 1.792 INCHES MINIMUM AND 1.817 INCHES MAXIMUM IN, hardness_rating: 50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM, outside_diameter: 2.281 INCHES MINIMUM AND 2.311 INCHES MAXIMUM IN, style_designator: KEY, surface_treatment: CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-006-0617, 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
W09
NSN: 5310-00-006-0617
FSC: 5310
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
hole_diameter1.792 INCHES MINIMUM AND 1.817 INCHES MAXIMUM IN
hardness_rating50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM
outside_diameter2.281 INCHES MINIMUM AND 2.311 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
material_thickness0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
external_key_quantity17
special_test_featuresSPECIAL QUALITY CONTROL TESTING
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS); ARMORED MULTI-PURPOSE VEHICLE (AMPV)
external_prebent_key_width0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
internal_prebent_key_width0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
NSN5310-00-006-0617
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: W09 · 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
•
OUTSIDE DIAMETER: 2.281 INCHES MINIMUM AND 2.311 INCHES MAXIMUM IN
•
INTERNAL PREBENT KEY LENGTH: 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
•
INTERNAL PREBENT KEY WIDTH: 0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY WIDTH: 0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
•
SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING
•
STYLE DESIGNATOR: KEY
•
MATERIAL: STEEL COMP 304 OVERALL
•
TEST DATA DOCUMENT: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER2.281 INCHES MINIMUM AND 2.311 INCHES MAXIMUM IN
INTERNAL PREBENT KEY LENGTH0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
INTERNAL PREBENT KEY WIDTH0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY WIDTH0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
STYLE DESIGNATORKEY
MATERIALSTEEL COMP 304 OVERALL
TEST DATA DOCUMENT81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
W09Interchangeable
interchangeable cross-reference
interchangeable
E2645PC30Interchangeable
interchangeable cross-reference
interchangeable
35515PC14Interchangeable
interchangeable cross-reference
interchangeable
M-3151 PIECE NO 8Interchangeable
interchangeable cross-reference
interchangeable
103717Interchangeable
interchangeable cross-reference
interchangeable
SKF-W-09Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W09?
W09 is a WASHER,LOCK.
What parts can replace W09?
There are 9 known substitutes for W09: W09, E2645PC30, 35515PC14 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W09?
W09 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-006-0617. 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