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4M71A4 — BEARING,PLAIN,SELF-ALIGNING

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

4M71A4: BEARING,PLAIN,SELF-ALIGNING.

The BEARING,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 INNER MEMBER, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, style_designator: WITHOUT INSERT OR LINER, surface_treatment: CADMIUM OUTER RACE MEMBER, inner_member_width: 0.3380 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN, outer_member_width: 0.2450 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-702-3142, 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
4M71A4
NSN: 3120-00-702-3142
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 INNER MEMBER
bore_diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
style_designatorWITHOUT INSERT OR LINER
surface_treatmentCADMIUM OUTER RACE MEMBER
inner_member_width0.3380 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
outer_member_width0.2450 INCHES NOMINAL IN
static_radial_load_rating6000 POUNDS LBS
outer_member_outside_diameter0.6557 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE INNER MEMBER
NSN3120-00-702-3142
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 4M71A4 · 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
•
INNER MEMBER WIDTH: 0.3380 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
•
OUTER MEMBER WIDTH: 0.2450 INCHES NOMINAL IN
•
STYLE DESIGNATOR: WITHOUT INSERT OR LINER
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE INNER MEMBER
•
SURFACE TREATMENT: CADMIUM OUTER RACE MEMBER
•
STATIC RADIAL LOAD RATING: 6000 POUNDS LBS
•
BORE DIAMETER: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
INNER MEMBER WIDTH0.3380 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
OUTER MEMBER WIDTH0.2450 INCHES NOMINAL IN
STYLE DESIGNATORWITHOUT INSERT OR LINER
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE INNER MEMBER
SURFACE TREATMENTCADMIUM OUTER RACE MEMBER
SURFACE TREATMENTCHROMIUM INNER MEMBER
STATIC RADIAL LOAD RATING6000 POUNDS LBS
BORE DIAMETER0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OUTER RACE MEMBER
MATERIALSTEEL COMP E52100 INNER MEMBER
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4M71A4?
4M71A4 is a BEARING,PLAIN,SELF-ALIGNING.
What is the NSN for 4M71A4?
4M71A4 is cataloged in the U.S. Government catalog under NSN 3120-00-702-3142. This indicates validated use in U.S. government and defense supply chains.
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