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643791 — LINK,WHEEL CYLINDER,HYDRAULIC BR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

643791: LINK,WHEEL CYLINDER,HYDRAULIC BR.

LINK,WHEEL CYLINDER,HYDRAULIC BR. Key specifications include end_type: PIN, material: STEEL, fork_depth: 0.500 INCHES NOMINAL IN, pin_diameter: 0.375 INCHES NOMINAL IN, adjustability: NONADJUSTABLE, overall_length: 1.844 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2530-00-273-8490, 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
643791
NSN: 2530-00-273-8490
FSC: 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
CAGE: 58275 — SASCO INC CANADIAN DIV
SPECIFICATIONS
end_typePIN
materialSTEEL
fork_depth0.500 INCHES NOMINAL IN
pin_diameter0.375 INCHES NOMINAL IN
adjustabilityNONADJUSTABLE
overall_length1.844 INCHES NOMINAL IN
fork_span_width0.438 INCHES NOMINAL IN
plain_shank_diameter0.438 INCHES NOMINAL IN
piston_end_shank_typePLAIN
shoe_connection_end_typeCLEVIS
NSN2530-00-273-8490
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LINK,WHEEL CYLINDER,HYDRAULIC BR TITLE COMPONENT PN 643791 MFR LINK,WHEEL CYLINDER,HY
KEY FEATURES
•
PIN DIAMETER: 0.375 INCHES NOMINAL IN
•
FORK SPAN WIDTH: 0.438 INCHES NOMINAL IN
•
SHOE CONNECTION END TYPE: CLEVIS
•
PISTON END SHANK TYPE: PLAIN
•
ADJUSTABILITY: NONADJUSTABLE
•
MATERIAL: STEEL
•
FORK DEPTH: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
PIN DIAMETER0.375 INCHES NOMINAL IN
FORK SPAN WIDTH0.438 INCHES NOMINAL IN
SHOE CONNECTION END TYPECLEVIS
OVERALL LENGTH1.844 INCHES NOMINAL IN
PISTON END SHANK TYPEPLAIN
ADJUSTABILITYNONADJUSTABLE
MATERIALSTEEL
FORK DEPTH0.500 INCHES NOMINAL IN
END TYPEPIN
PLAIN SHANK DIAMETER0.438 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 7
2030570Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
000615-1058Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
FC671Reference document
Same NSN cross-reference
Reference document — Secondary reference
FC671DReference document
Same NSN cross-reference
Reference document — Secondary reference
2245MA11Reference document
Same NSN cross-reference
Reference document — Secondary reference
224SMA11Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 643791?
643791 is a LINK,WHEEL CYLINDER,HYDRAULIC BR.
What parts can replace 643791?
There are 7 known substitutes for 643791: 2030570, 000615-1058, FC671 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 643791?
643791 is cataloged in the U.S. Government catalog under NSN 2530-00-273-8490. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.