PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 7521020
7521020 ✓ 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 BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8620 OVERALL, corner_shape: SQUARE ALL CORNERS, flange_width: 0.1610 INCHES MINIMUM AND 0.1630 INCHES MAXIMUM IN, hole_diameter: 0.1860 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM FIRST IN, overall_length: 1.4840 INCHES MINIMUM AND 1.4850 INCHES MAXIMUM IN, surface_finish: 16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-752-1020, 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
7521020
NSN: 3120-00-752-1020
FSC: 3120
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 8620 OVERALL
corner_shapeSQUARE ALL CORNERS
flange_width0.1610 INCHES MINIMUM AND 0.1630 INCHES MAXIMUM IN
hole_diameter0.1860 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM FIRST IN
overall_length1.4840 INCHES MINIMUM AND 1.4850 INCHES MAXIMUM IN
surface_finish16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
hardness_rating59.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSOLID, EXTERNAL FLANGE ONE END
features_providedCASEHARDENED
surface_treatmentPHOSPHATE MANGANESE OVERALL
body_inside_diameter1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
body_outside_diameter2.1205 INCHES MINIMUM AND 2.1210 INCHES MAXIMUM IN
NSN3120-00-752-1020
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 7521020 · 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
•
SURFACE FINISH: 16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE
•
SURFACE TREATMENT: PHOSPHATE MANGANESE OVERALL
•
CORNER SHAPE: SQUARE ALL CORNERS
•
FLANGE OUTSIDE DIAMETER: 2.5625 INCHES NOMINAL IN
•
MATERIAL: LUBRICANT LUBRICATION
•
HOLE DIAMETER: 0.1860 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM FIRST IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISH16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE
SURFACE FINISH50.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE TREATMENTPHOSPHATE MANGANESE OVERALL
CORNER SHAPESQUARE ALL CORNERS
FLANGE OUTSIDE DIAMETER2.5625 INCHES NOMINAL IN
MATERIALLUBRICANT LUBRICATION
HOLE DIAMETER0.1860 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM FIRST IN
FEATURES PROVIDEDCASEHARDENED
BODY OUTSIDE DIAMETER2.1205 INCHES MINIMUM AND 2.1210 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
MR16Interchangeable
interchangeable cross-reference
interchangeable
230-10019Interchangeable
interchangeable cross-reference
interchangeable
108147Interchangeable
interchangeable cross-reference
interchangeable
911-100AGPInterchangeable
interchangeable cross-reference
interchangeable
914-100Interchangeable
interchangeable cross-reference
interchangeable
911-100ABBInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 7521020?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 7521020?
7521020 is a BEARING,ROLLER,NEEDLE.
What parts can replace 7521020?
There are 10 known substitutes for 7521020: MR16, 230-10019, 108147 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7521020?
7521020 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-752-1020. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 7521020

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026