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PartsTable / COMPONENT / 3A577
3A577 ✓ 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

SPIDER,UNIVERSAL JOINT,VEHICULAR. Key specifications include material: STEEL, length_across_arms: 7.744 INCHES MINIMUM AND 7.745 INCHES MAXIMUM IN, end_item_identification: FINAL DRIVE,DIFFERENTIAL,COMBAT TANK. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2520-00-563-6634, 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
3A577
NSN: 2520-00-563-6634
FSC: 2520
CAGE: 2Y614 — LINK-BELT CRANES, L.P., LLLP (USA)
SPECIFICATIONS
materialSTEEL
length_across_arms7.744 INCHES MINIMUM AND 7.745 INCHES MAXIMUM IN
end_item_identificationFINAL DRIVE,DIFFERENTIAL,COMBAT TANK
NSN2520-00-563-6634
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPIDER,UNIVERSAL JOINT,VEHICULAR TITLE COMPONENT PN 3A577 MFR SPIDER,UNIVERSAL JOINT
KEY FEATURES
•
LENGTH ACROSS ARMS: 7.744 INCHES MINIMUM AND 7.745 INCHES MAXIMUM IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
LENGTH ACROSS ARMS7.744 INCHES MINIMUM AND 7.745 INCHES MAXIMUM IN
SPECIAL FEATURESRH THD;1/8-27 NP,THD SIZE;BRGS-INCL.;BRG QTY 4;BRG OD 2.156 IN.;BRG LG 3.750 IN.;LUBRICATION MODE-PORT;BRG SHAPE-INCLOSED END CYLINDERICAL;BRG TYPE-NEEDLE;HUB BORE DIA 2.750/2.751 IN.;PORT THD PROVISION-THDED IN
MATERIALSTEEL
END ITEM IDENTIFICATIONFINAL DRIVE,DIFFERENTIAL,COMBAT TANK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
9S4718LAT19PC60Interchangeable
interchangeable cross-reference
interchangeable
9000S6202-74031-60Interchangeable
interchangeable cross-reference
interchangeable
3662-01Interchangeable
interchangeable cross-reference
interchangeable
1149000Interchangeable
interchangeable cross-reference
interchangeable
366200Interchangeable
interchangeable cross-reference
interchangeable
A645-1302Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3A577?
3A577 is a SPIDER,UNIVERSAL JOINT,VEHICULAR.
What parts can replace 3A577?
There are 15 known substitutes for 3A577: 9S4718LAT19PC60, 9000S6202-74031-60, 3662-01 and 12 more. Substitute compatibility should be verified for your specific system.
Is 3A577 still available?
3A577 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