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2643-857-10 — BEARING,WASHER,THRUST

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

2643-857-10: BEARING,WASHER,THRUST.

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include special_features: 4.480 X 3.062 X 0.562THK, end_item_identification: VALVE ASSEMBLY BALL HULL & BACKUP FULL PORT 3 INCH 0-700 PSI IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-481-8617, 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
2643-857-10
NSN: 3120-01-481-8617
NIINs: 014818617, 014818622
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
special_features4.480 X 3.062 X 0.562THK
end_item_identificationVALVE ASSEMBLY BALL HULL & BACKUP FULL PORT 3 INCH 0-700 PSI IN
NSN3120-01-481-8617
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 2643-857-10 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 2
2643-857-10-26Reference document
Same NSN cross-reference
Reference document — Secondary reference
845-7108467Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2643-857-10?
2643-857-10 is a BEARING,WASHER,THRUST.
What parts can replace 2643-857-10?
There are 2 known substitutes for 2643-857-10: 2643-857-10-26, 845-7108467. Substitute compatibility should be verified for your specific system.
What is the NSN for 2643-857-10?
2643-857-10 is cataloged in the U.S. Government catalog under NSN 3120-01-481-8617. This indicates validated use in U.S. government and defense supply chains.
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