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SD63521 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The BOOT,VEHICULAR COMPONENTS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 OR STEEL COMP 4340 OR STEEL COMP 4140 OVERALL, nut_style: HEXAGON, case_style: SQUARE, nut_height: 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN, seal_width: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, grip_length: 0.220 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-246-2867, 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
SD63521
NSN: 2530-00-246-2867
FSC: 2530
CAGE: 10086 — GRADALL COMPANY THE (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OR STEEL COMP 4340 OR STEEL COMP 4140 OVERALL
nut_styleHEXAGON
case_styleSQUARE
nut_height0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
seal_width0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
grip_length0.220 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
head_height0.062 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
lubricationCETYL ALCOHOL
shank_styleSTUMP
temp_rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
thread_class2A LOCATION NOT OTHERWISE SPECIFIED A
document_typeMFR DRAWING
NSN2530-00-246-2867
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BOOT,VEHICULAR COMPONENTS TITLE COMPONENT PN SD63521 MFR BOOT,VEHICULAR COMPONE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
14974AInterchangeable
interchangeable cross-reference
interchangeable
3H4579AV7Interchangeable
interchangeable cross-reference
interchangeable
14974Interchangeable
interchangeable cross-reference
interchangeable
AFS-2782Interchangeable
interchangeable cross-reference
interchangeable
NAS1497-04Interchangeable
interchangeable cross-reference
interchangeable
149/74Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SD63521?
SD63521 is a BOOT,VEHICULAR COMPONENTS.
What parts can replace SD63521?
There are 10 known substitutes for SD63521: 14974A, 3H4579AV7, 14974 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SD63521?
SD63521 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-246-2867. 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