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Technical Data Sheet
PartsTable / COMPONENT / 4591-SF
4591-SF ✓ 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 BRAKE SHOE is a the manufacturer industrial component. Key specifications include actuation_method: CAM EXTERNAL, drum_width_for_which_designed: 7.500 INCHES NOMINAL IN, drum_diameter_for_which_designed: 12.500 INCHES NOMINAL 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 2530-01-071-9893, 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
4591-SF
NSN: 2530-01-071-9893
FSC: 2530
CAGE: 59233 — GRATTAN FAMILY ENTERPRISES, LLC DBA UNI-BOND BRAKE (USA)
SPECIFICATIONS
actuation_methodCAM EXTERNAL
drum_width_for_which_designed7.500 INCHES NOMINAL IN
drum_diameter_for_which_designed12.500 INCHES NOMINAL IN
NSN2530-01-071-9893
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRAKE SHOE TITLE COMPONENT PN 4591-SF MFR BRAKE SHOE
KEY FEATURES
•
ACTUATION METHOD: CAM EXTERNAL
•
DRUM DIAMETER FOR WHICH DESIGNED: 12.500 INCHES NOMINAL IN
•
DRUM WIDTH FOR WHICH DESIGNED: 7.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ACTUATION METHODCAM EXTERNAL
DRUM DIAMETER FOR WHICH DESIGNED12.500 INCHES NOMINAL IN
DRUM WIDTH FOR WHICH DESIGNED7.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
M12WL111-14Interchangeable
interchangeable cross-reference
interchangeable
863T0000517Interchangeable
interchangeable cross-reference
interchangeable
863T0000517-003Interchangeable
interchangeable cross-reference
interchangeable
20-1140Interchangeable
interchangeable cross-reference
interchangeable
30-400-15Interchangeable
interchangeable cross-reference
interchangeable
252033Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4591-SF?
4591-SF is a BRAKE SHOE.
What parts can replace 4591-SF?
There are 12 known substitutes for 4591-SF: M12WL111-14, 863T0000517, 863T0000517-003 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4591-SF?
4591-SF is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-01-071-9893. 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