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903-5912047PC40 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

903-5912047PC40: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 2.5000 INCHES NOMINAL IN, style_designator: SPLIT, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 4.2550 INCHES MINIMUM AND 4.2580 INCHES MAXIMUM IN, body_outside_diameter: 4.4950 INCHES MINIMUM AND 4.5030 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-421-7906, 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
903-5912047PC40
NSN: 3120-01-421-7906
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length2.5000 INCHES NOMINAL IN
style_designatorSPLIT, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter4.2550 INCHES MINIMUM AND 4.2580 INCHES MAXIMUM IN
body_outside_diameter4.4950 INCHES MINIMUM AND 4.5030 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-23284 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-01-421-7906
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 903-5912047PC40 · 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 ALL CORNERS
•
BODY OUTSIDE DIAMETER: 4.4950 INCHES MINIMUM AND 4.5030 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPLIT, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-23284 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 4.2550 INCHES MINIMUM AND 4.2580 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER4.4950 INCHES MINIMUM AND 4.5030 INCHES MAXIMUM IN
STYLE DESIGNATORSPLIT, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-23284 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH2.5000 INCHES NOMINAL IN
BODY INSIDE DIAMETER4.2550 INCHES MINIMUM AND 4.2580 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 903-5912047PC40?
903-5912047PC40 is a BUSHING,SLEEVE.
What is the NSN for 903-5912047PC40?
903-5912047PC40 is cataloged in the U.S. Government catalog under NSN 3120-01-421-7906. 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.