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Technical Data Sheet
PartsTable / COMPONENT / 3577 17020
3577 17020 ✓ 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: STEEL COMP 304 OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.6860 INCHES MINIMUM AND 0.6900 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.3120 INCHES MINIMUM AND 0.3140 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 3120-01-017-4007, 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
3577 17020
NSN: 3120-01-017-4007
FSC: 3120
CAGE: 25567 — THE GORMAN-RUPP COMPANY DIV GORMAN-RUPP (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.6860 INCHES MINIMUM AND 0.6900 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.3120 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
body_outside_diameter0.3770 INCHES MINIMUM AND 0.3780 INCHES MAXIMUM IN
NSN3120-01-017-4007
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 3577 17020 · 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
•
BODY OUTSIDE DIAMETER: 0.3770 INCHES MINIMUM AND 0.3780 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 0.3120 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
•
SURFACE FINISH: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
•
MATERIAL: STEEL COMP 304 OVERALL
•
CORNER SHAPE: SQUARE ALL CORNERS
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER0.3770 INCHES MINIMUM AND 0.3780 INCHES MAXIMUM IN
OVERALL LENGTH0.6860 INCHES MINIMUM AND 0.6900 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.3120 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH63.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE FINISH125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
MATERIALSTEEL COMP 304 OVERALL
CORNER SHAPESQUARE ALL CORNERS
SURFACE FINISH63.0 MICROINCHES LEFT END SURFACE OF BODY
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
3577Interchangeable
interchangeable cross-reference
interchangeable
3577TIMInterchangeable
interchangeable cross-reference
interchangeable
357-20INInterchangeable
interchangeable cross-reference
interchangeable
357Interchangeable
interchangeable cross-reference
interchangeable
411336-147Interchangeable
interchangeable cross-reference
interchangeable
EB3345Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3577 17020?
3577 17020 is a BUSHING,SLEEVE.
What parts can replace 3577 17020?
There are 15 known substitutes for 3577 17020: 3577, 3577TIM, 357-20IN and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3577 17020?
3577 17020 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-017-4007. 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