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Technical Data Sheet
PartsTable / COMPONENT / 70072-9
70072-9 ✓ 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 material: STEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL, thickness: 0.1563 INCHES MINIMUM AND 0.1573 INCHES MAXIMUM IN, key_height: 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, 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, style_designator: ROUND BOTTOM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-616-5525, 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
70072-9
NSN: 5315-00-616-5525
FSC: 5315
CAGE: 95097 — LITTLE GIANT CRANE AND SHOVEL INC (USA)
SPECIFICATIONS
materialSTEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
thickness0.1563 INCHES MINIMUM AND 0.1573 INCHES MAXIMUM IN
key_height0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
circle_diameter0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
style_designatorROUND BOTTOM
starting_edge_shapeSTRAIGHT
key_size_designationWOODRUFF 6
NSN5315-00-616-5525
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 70072-9 · 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
•
THICKNESS: 0.1563 INCHES MINIMUM AND 0.1573 INCHES MAXIMUM IN
•
STARTING EDGE SHAPE: STRAIGHT
•
CIRCLE DIAMETER: 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
•
STYLE DESIGNATOR: ROUND BOTTOM
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
KEY SIZE DESIGNATION: WOODRUFF 6
•
KEY HEIGHT: 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.1563 INCHES MINIMUM AND 0.1573 INCHES MAXIMUM IN
STARTING EDGE SHAPESTRAIGHT
CIRCLE DIAMETER0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
MATERIALSTEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
STYLE DESIGNATORROUND BOTTOM
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
KEY SIZE DESIGNATIONWOODRUFF 6
KEY HEIGHT0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
DX276Interchangeable
interchangeable cross-reference
interchangeable
0910224-5Interchangeable
interchangeable cross-reference
interchangeable
1279AInterchangeable
interchangeable cross-reference
interchangeable
472-0006-087Interchangeable
interchangeable cross-reference
interchangeable
124546Interchangeable
interchangeable cross-reference
interchangeable
125-3534Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 70072-9?
70072-9 is a KEY,WOODRUFF.
What parts can replace 70072-9?
There are 28 known substitutes for 70072-9: DX276, 0910224-5, 1279A and 25 more. Substitute compatibility should be verified for your specific system.
Is 70072-9 still available?
70072-9 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