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3121-4-6 — BEARING HALF,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

3121-4-6: BEARING HALF,SLEEVE.

The BEARING HALF,SLEEVE is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: COPPER ALLOY LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 0.500 INCHES NOMINAL IN, overall_length: 1.375 INCHES NOMINAL IN, style_designator: DOUBLE ARCH. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-682-7629, 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
3121-4-6
NSN: 3120-00-682-7629
NIINs: 006827629, 011130889
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 00501 — NEW HOLLAND N.V.NC. (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialCOPPER ALLOY LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.500 INCHES NOMINAL IN
overall_length1.375 INCHES NOMINAL IN
style_designatorDOUBLE ARCH
material_thickness0.031 INCHES NOMINAL IN
mounting_hole_size0.188 INCHES NOMINAL IN
inside_diameter/arch_length0.375 INCHES NOMINAL IN
distance_between_base_and_inside_of_arch0.406 INCHES NOMINAL IN
center_to_center_distance_between_arch_and_mounting_hole0.469 INCHES NOMINAL IN
NSN3120-00-682-7629
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 3121-4-6 · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
•
DISTANCE FROM CENTERLINE OF OPENING TO LEFT END OF BEARING: 0.3800 INCHES NOMINAL FIRST IN
•
LOCKING LUG HEIGHT: 0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 2.6920 INCHES NOMINAL IN
•
STYLE DESIGNATOR: HALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
BODY INSIDE DIAMETER: 2.5200 INCHES MINIMUM AND 2.5400 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
DISTANCE FROM CENTERLINE OF OPENING TO LEFT END OF BEARING0.3800 INCHES NOMINAL FIRST IN
LOCKING LUG HEIGHT0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER2.6920 INCHES NOMINAL IN
STYLE DESIGNATORHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
OVERALL LENGTH1.3200 INCHES MINIMUM AND 1.3300 INCHES MAXIMUM IN
BODY INSIDE DIAMETER2.5200 INCHES MINIMUM AND 2.5400 INCHES MAXIMUM IN
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
LOCKING LUG WIDTH0.1750 INCHES MINIMUM AND 0.1850 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3121-4-6?
3121-4-6 is a BEARING HALF,SLEEVE.
What is the NSN for 3121-4-6?
3121-4-6 is cataloged in the U.S. Government catalog under NSN 3120-00-682-7629. This indicates validated use in U.S. government and defense supply chains.
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