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Technical Data Sheet
PartsTable / COMPONENT / 920556
920556 ✓ 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 PARTS KIT,STEERING GEAR is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 630 OVERALL, corner_shape: SQUARE INSIDE RIGHT CORNER, flange_width: 0.0920 INCHES MINIMUM AND 0.0930 INCHES MAXIMUM IN, overall_length: 0.5000 INCHES NOMINAL IN, surface_finish: 40.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE, style_designator: SOLID, EXTERNAL FLANGE ONE END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-662-4877, 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
920556
NSN: 3120-00-662-4877
FSC: 3120
CAGE: 13002 — GOODRICH CORPORATION DIV ADVANCED STRUCTURES LANDING SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY 630 OVERALL
corner_shapeSQUARE INSIDE RIGHT CORNER
flange_width0.0920 INCHES MINIMUM AND 0.0930 INCHES MAXIMUM IN
overall_length0.5000 INCHES NOMINAL IN
surface_finish40.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
style_designatorSOLID, EXTERNAL FLANGE ONE END
surface_treatmentCADMIUM OUTSIDE DIAMETER SURFACE OF BODY
body_inside_diameter0.8650 INCHES MINIMUM AND 0.8670 INCHES MAXIMUM IN
body_outside_diameter1.0015 INCHES MINIMUM AND 1.0025 INCHES MAXIMUM IN
flange_outside_diameter1.2500 INCHES NOMINAL IN
NSN3120-00-662-4877
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 920556 · 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 INSIDE RIGHT CORNER
•
SURFACE FINISH: 100.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
•
SURFACE TREATMENT: CADMIUM RIGHT END SURFACE OF BODY
•
MATERIAL: COPPER ALLOY 630 OVERALL
•
BODY OUTSIDE DIAMETER: 1.0015 INCHES MINIMUM AND 1.0025 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE INSIDE RIGHT CORNER
SURFACE FINISH100.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE TREATMENTCADMIUM RIGHT END SURFACE OF BODY
MATERIALCOPPER ALLOY 630 OVERALL
SURFACE FINISH100.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
SURFACE FINISH100.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE TREATMENTCADMIUM INSIDE DIAMETER SURFACE OF BODY
BODY OUTSIDE DIAMETER1.0015 INCHES MINIMUM AND 1.0025 INCHES MAXIMUM IN
SURFACE FINISH40.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
SURFACE TREATMENTCADMIUM RIGHT END SURFACE OF LEFT FLANGE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
915761Interchangeable
interchangeable cross-reference
interchangeable
18581Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 920556?
920556 is a PARTS KIT,STEERING GEAR.
What parts can replace 920556?
There are 2 known substitutes for 920556: 915761, 18581. Substitute compatibility should be verified for your specific system.
What is the NSN for 920556?
920556 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-662-4877. 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