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SP-7651 ✓ 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 OVERALL, thickness: 0.188 INCHES NOMINAL IN, circle_diameter: 0.625 INCHES NOMINAL IN, surface_treatment: CADMIUM 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 5315-01-229-6093, 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
SP-7651
NSN: 5315-01-229-6093
FSC: 5315
CAGE: 04366 — LIQUID CONTROLS, L.L.C. DIV IDEX CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.188 INCHES NOMINAL IN
circle_diameter0.625 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
NSN5315-01-229-6093
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SP-7651 · 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
•
SURFACE TREATMENT: CADMIUM OVERALL
•
CIRCLE DIAMETER: 0.625 INCHES NOMINAL IN
•
THICKNESS: 0.188 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OVERALL
CIRCLE DIAMETER0.625 INCHES NOMINAL IN
THICKNESS0.188 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
4506Interchangeable
interchangeable cross-reference
interchangeable
4.50-6Interchangeable
interchangeable cross-reference
interchangeable
5.30/4.50-6Interchangeable
interchangeable cross-reference
interchangeable
GP5/5.30/4.50-6/TR87/OFF CENTERInterchangeable
interchangeable cross-reference
interchangeable
109Interchangeable
interchangeable cross-reference
interchangeable
2065-16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SP-7651?
SP-7651 is a KEY,WOODRUFF.
What parts can replace SP-7651?
There are 15 known substitutes for SP-7651: 4506, 4.50-6, 5.30/4.50-6 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SP-7651?
SP-7651 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-229-6093. 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