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1203-206 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

1203-206: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, corner_shape: SQUARE LEFT FLANGE BODY CORNER, overall_length: 0.6210 INCHES NOMINAL IN, special_features: NONE FLAT ON PERIPHERY OF RIGHTEND FLANGE,1.0000 IN. W ACROSS TO FLAT IN, style_designator: SOLID, EXTERNAL FLANGES BOTH ENDS, left_flange_width: 0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 3120-00-421-7780, 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
1203-206
NSN: 3120-00-421-7780
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 72314 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
corner_shapeSQUARE LEFT FLANGE BODY CORNER
overall_length0.6210 INCHES NOMINAL IN
special_featuresNONE FLAT ON PERIPHERY OF RIGHTEND FLANGE,1.0000 IN. W ACROSS TO FLAT IN
style_designatorSOLID, EXTERNAL FLANGES BOTH ENDS
left_flange_width0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
right_flange_width0.0800 INCHES MINIMUM AND 0.1000 INCHES MAXIMUM IN
body_inside_diameter0.3120 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
body_outside_diameter0.3850 INCHES NOMINAL IN
left_flange_outside_diameter0.4136 INCHES MINIMUM AND 0.4146 INCHES MAXIMUM IN
right_flange_outside_diameter1.0830 INCHES MINIMUM AND 1.1030 INCHES MAXIMUM IN
NSN3120-00-421-7780
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 1203-206 · 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
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE RIGHT FLANGE BODY CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE RIGHT FLANGE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
RIGHT FLANGE WIDTH0.0800 INCHES MINIMUM AND 0.1000 INCHES MAXIMUM IN
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1203-206?
1203-206 is a BUSHING,SLEEVE.
What is the NSN for 1203-206?
1203-206 is cataloged in the U.S. Government catalog under NSN 3120-00-421-7780. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.