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TW102 ✓ 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 BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include diameter: 1.0145 INCHES MINIMUM AND 1.0175 INCHES MAXIMUM IN, material: LUBRICANT LUBRICATION, corner_shape: SQUARE ALL CORNERS, hole_diameter: 0.615 INCHES NOMINAL IN, outside_diameter: 1.9950 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM IN, special_features: INTERNAL PREBENT KEY FACES SAME DIRECTION AS EXTERNAL KEYS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-424-2939, 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
TW102
NSN: 5310-00-424-2939
FSC: 5310
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
diameter1.0145 INCHES MINIMUM AND 1.0175 INCHES MAXIMUM IN
materialLUBRICANT LUBRICATION
corner_shapeSQUARE ALL CORNERS
hole_diameter0.615 INCHES NOMINAL IN
outside_diameter1.9950 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM IN
special_featuresINTERNAL PREBENT KEY FACES SAME DIRECTION AS EXTERNAL KEYS
style_designatorROUND
overall_thickness0.1225 INCHES MINIMUM AND 0.1275 INCHES MAXIMUM IN
material_thickness0.058 INCHES NOMINAL IN
external_key_quantity11
center_hole_shape_styleROUND
external_prebent_key_width0.116 INCHES NOMINAL IN
NSN5310-00-424-2939
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: TW102 · 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 OVERALL
•
OUTSIDE DIAMETER: 0.813 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 11
•
EXTERNAL PREBENT KEY WIDTH: 0.116 INCHES NOMINAL IN
•
OVERALL DISTANCE INCLUDING KEYS: 1.156 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.615 INCHES NOMINAL IN
•
INTERNAL PREBENT KEY WIDTH: 0.118 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER0.813 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY11
SPECIAL FEATURESINTERNAL PREBENT KEY FACES SAME DIRECTION AS EXTERNAL KEYS
EXTERNAL PREBENT KEY WIDTH0.116 INCHES NOMINAL IN
OVERALL DISTANCE INCLUDING KEYS1.156 INCHES NOMINAL IN
HOLE DIAMETER0.615 INCHES NOMINAL IN
INTERNAL PREBENT KEY WIDTH0.118 INCHES NOMINAL IN
MATERIAL THICKNESS0.058 INCHES NOMINAL IN
STYLE DESIGNATORKEY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
381-17Interchangeable
interchangeable cross-reference
interchangeable
52B6584-1Interchangeable
interchangeable cross-reference
interchangeable
EW163202Interchangeable
interchangeable cross-reference
interchangeable
N38117Interchangeable
interchangeable cross-reference
interchangeable
18356N GROUP 8 PC 26Interchangeable
interchangeable cross-reference
interchangeable
5340PL0952586Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TW102?
TW102 is a BEARING,WASHER,THRUST.
What parts can replace TW102?
There are 6 known substitutes for TW102: 381-17, 52B6584-1, EW163202 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TW102?
TW102 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-424-2939. 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