PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 121648-2
121648-2 ✓ 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 BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM AND COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, flange_width: 0.2500 INCHES NOMINAL IN, overall_length: 0.7900 INCHES NOMINAL IN, style_designator: BLANK, EXTERNAL FLANGE ONE END, body_inside_diameter: 0.7500 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM 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 3120-01-492-6229, 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
121648-2
NSN: 3120-01-492-6229
FSC: 3120
CAGE: 82340 — L3HARRIS TECHNOLOGIES, INC. DIV SPACE AND AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM AND COPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
flange_width0.2500 INCHES NOMINAL IN
overall_length0.7900 INCHES NOMINAL IN
style_designatorBLANK, EXTERNAL FLANGE ONE END
body_inside_diameter0.7500 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM IN
body_outside_diameter1.0633 INCHES MINIMUM AND 1.0638 INCHES MAXIMUM IN
end_item_identificationMK-105,MOD-4,NACELLE LIFT MECHANISM
flange_outside_diameter1.2500 INCHES NOMINAL IN
material_document_and_classificationQQ-C-465,ALLOY642 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyBUSHING,HYDRAULIC
NSN3120-01-492-6229
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 121648-2 · 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 DOCUMENT AND CLASSIFICATION: QQ-C-465,ALLOY642 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: BLANK, EXTERNAL FLANGE ONE END
•
BODY INSIDE DIAMETER: 0.7500 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 1.0633 INCHES MINIMUM AND 1.0638 INCHES MAXIMUM IN
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL: ALUMINUM AND COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-465,ALLOY642 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
END ITEM IDENTIFICATIONMK-105,MOD-4,NACELLE LIFT MECHANISM
STYLE DESIGNATORBLANK, EXTERNAL FLANGE ONE END
BODY INSIDE DIAMETER0.7500 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.0633 INCHES MINIMUM AND 1.0638 INCHES MAXIMUM IN
CORNER SHAPESQUARE ALL CORNERS
MATERIALALUMINUM AND COPPER ALLOY OVERALL
OVERALL LENGTH0.7900 INCHES NOMINAL IN
FLANGE WIDTH0.2500 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER1.2500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
113657Interchangeable
interchangeable cross-reference
interchangeable
121648Interchangeable
interchangeable cross-reference
interchangeable
121648-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121648-2?
121648-2 is a BUSHING,SLEEVE.
What parts can replace 121648-2?
There are 3 known substitutes for 121648-2: 113657, 121648, 121648-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 121648-2?
121648-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-492-6229. 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