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3900633 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

3900633: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 5.5 MILLIMETERS NOMINAL MM, fastener_length: 50.00 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND, width_between_flats: 13.0 MILLIMETERS NOMINAL MM, end_item_identification: 2420-66-148-7692, HMEE (HIGH MOBILITY ENGINEER EXCAVATOR); RG-31 MRAP; MEDIUM MINE PROTECTED VEHICLE - MMPV. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-498-4283, 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
3900633
NSN: 3120-00-498-4283
NIINs: 004984283, 012371166
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 17454 — TIMKEN GEARS & SERVICES INC. DIV PHILADELPHIA GEAR (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height5.5 MILLIMETERS NOMINAL MM
fastener_length50.00 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
width_between_flats13.0 MILLIMETERS NOMINAL MM
end_item_identification2420-66-148-7692, HMEE (HIGH MOBILITY ENGINEER EXCAVATOR); RG-31 MRAP; MEDIUM MINE PROTECTED VEHICLE - MMPV
nominal_thread_diameter8.0 MILLIMETERS MM
thread_series_designatorM
thread_pitch_in_millimeters1.25
external_thread_tolerance_class6G G
NSN3120-00-498-4283
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 3900633 · 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
SUBSTITUTES & CROSS-REFERENCES 3
D59218Reference document
Same NSN cross-reference
Reference document — Secondary reference
KGR390BEX10ULReference document
Same NSN cross-reference
Reference document — Secondary reference
D5921BReference document
Same NSN cross-reference
Reference document — Secondary reference
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 3900633?
3900633 is a BEARING,SLEEVE.
What parts can replace 3900633?
There are 3 known substitutes for 3900633: D59218, KGR390BEX10UL, D5921B. Substitute compatibility should be verified for your specific system.
What is the NSN for 3900633?
3900633 is cataloged in the U.S. Government catalog under NSN 3120-00-498-4283. 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.