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Technical Data Sheet
PartsTable / COMPONENT / 2153126
2153126 ✓ 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 KEY,WOODRUFF is a the manufacturer industrial component. Key specifications include end_item_identification: ALCO 251 MARINE ENGINE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-616-5526, 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
2153126
NSN: 5315-00-616-5526
FSC: 5315
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
end_item_identificationALCO 251 MARINE ENGINE
NSN5315-00-616-5526
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2153126 · 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
•
KEY HEIGHT: 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
STARTING EDGE SHAPE: STRAIGHT
•
MATERIAL: STEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
•
STYLE DESIGNATOR: ROUND BOTTOM
•
KEY SIZE DESIGNATION: WOODRUFF 5
•
CIRCLE DIAMETER: 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
THICKNESS: 0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
KEY HEIGHT0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
STARTING EDGE SHAPESTRAIGHT
MATERIALSTEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
STYLE DESIGNATORROUND BOTTOM
KEY SIZE DESIGNATIONWOODRUFF 5
CIRCLE DIAMETER0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
THICKNESS0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
T-244-MInterchangeable
interchangeable cross-reference
interchangeable
72-700476-1Interchangeable
interchangeable cross-reference
interchangeable
MS35431-3Interchangeable
interchangeable cross-reference
interchangeable
1B8704Interchangeable
interchangeable cross-reference
interchangeable
11992Interchangeable
interchangeable cross-reference
interchangeable
CR5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2153126?
2153126 is a KEY,WOODRUFF.
What parts can replace 2153126?
There are 25 known substitutes for 2153126: T-244-M, 72-700476-1, MS35431-3 and 22 more. Substitute compatibility should be verified for your specific system.
Is 2153126 still available?
2153126 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