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PartsTable / COMPONENT / TW109
TW109 ✓ 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,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 1.808 INCHES NOMINAL IN, outside_diameter: 2.305 INCHES NOMINAL IN, special_features: ALL KEYS PREBENT IN SAME DIRECTION, style_designator: KEY, material_thickness: 0.072 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-247-4264, 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
TW109
NSN: 5310-00-247-4264
FSC: 5310
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter1.808 INCHES NOMINAL IN
outside_diameter2.305 INCHES NOMINAL IN
special_featuresALL KEYS PREBENT IN SAME DIRECTION
style_designatorKEY
material_thickness0.072 INCHES NOMINAL IN
external_key_quantity17
external_prebent_key_width0.224 INCHES NOMINAL IN
internal_prebent_key_width0.272 INCHES NOMINAL IN
internal_prebent_key_length0.164 INCHES NOMINAL IN
overall_distance_including_keys2.704 INCHES NOMINAL IN
NSN5310-00-247-4264
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: TW109 · 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
•
STYLE DESIGNATOR: KEY
•
INTERNAL PREBENT KEY WIDTH: 0.272 INCHES NOMINAL IN
•
HOLE DIAMETER: 1.808 INCHES NOMINAL IN
•
INTERNAL PREBENT KEY LENGTH: 0.164 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.305 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 17
•
OVERALL DISTANCE INCLUDING KEYS: 2.704 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORKEY
INTERNAL PREBENT KEY WIDTH0.272 INCHES NOMINAL IN
HOLE DIAMETER1.808 INCHES NOMINAL IN
INTERNAL PREBENT KEY LENGTH0.164 INCHES NOMINAL IN
OUTSIDE DIAMETER2.305 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY17
SPECIAL FEATURESALL KEYS PREBENT IN SAME DIRECTION
OVERALL DISTANCE INCLUDING KEYS2.704 INCHES NOMINAL IN
EXTERNAL PREBENT KEY WIDTH0.224 INCHES NOMINAL IN
MATERIAL THICKNESS0.072 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
44-05-07-00-73Interchangeable
interchangeable cross-reference
interchangeable
13264Interchangeable
interchangeable cross-reference
interchangeable
986113-2BInterchangeable
interchangeable cross-reference
interchangeable
861109Interchangeable
interchangeable cross-reference
interchangeable
14557Interchangeable
interchangeable cross-reference
interchangeable
A-A-625Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TW109?
TW109 is a WASHER,KEY.
What parts can replace TW109?
There are 12 known substitutes for TW109: 44-05-07-00-73, 13264, 986113-2B and 9 more. Substitute compatibility should be verified for your specific system.
Is TW109 still available?
TW109 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026