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Technical Data Sheet
PartsTable / COMPONENT / 5L1
5L1 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include fsc_application_data: TRAINER,FLIGHT SIMULATOR, end_item_identification: CH-53G HELICOPTER G. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-159-1475, 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
5L1
NSN: 3130-00-159-1475
FSC: 3130
CAGE: 71041 — ALTRA INDUSTRIAL MOTION CORP. (USA)
SPECIFICATIONS
fsc_application_dataTRAINER,FLIGHT SIMULATOR
end_item_identificationCH-53G HELICOPTER G
NSN3130-00-159-1475
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 5L1 · 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
KEY FEATURES
•
MATERIAL: STEEL SEAL
•
ROLLING ELEMENT GROOVE QUANTITY: 1
•
SHAFT END TYPE: OPEN
•
MOUNTING HOLE TYPE: SLOTTED
•
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE: 1.3125 INCHES NOMINAL IN
•
ALIGNMENT TYPE: SELF-ALIGNING
•
SEAL TYPE: LABYRINTH
•
STYLE DESIGNATOR: PILLOW BLOCK, SOLID
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL SEAL
ROLLING ELEMENT GROOVE QUANTITY1
SHAFT END TYPEOPEN
MOUNTING HOLE TYPESLOTTED
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE1.3125 INCHES NOMINAL IN
ALIGNMENT TYPESELF-ALIGNING
SEAL TYPELABYRINTH
STYLE DESIGNATORPILLOW BLOCK, SOLID
ASSEMBLY OVERALL LENGTH1.7500 INCHES NOMINAL IN
STYLE DESIGNATORPILLOW BLOCK, SOLID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
618998-7Interchangeable
interchangeable cross-reference
interchangeable
9946Interchangeable
interchangeable cross-reference
interchangeable
MC946LAInterchangeable
interchangeable cross-reference
interchangeable
40-654-1008-09Interchangeable
interchangeable cross-reference
interchangeable
SW946-1FInterchangeable
interchangeable cross-reference
interchangeable
9401-00003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5L1?
5L1 is a CIRCUIT CARD ASSEMBLY.
What parts can replace 5L1?
There are 24 known substitutes for 5L1: 618998-7, 9946, MC946LA and 21 more. Substitute compatibility should be verified for your specific system.
Is 5L1 still available?
5L1 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