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Technical Data Sheet
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402550 — BUSHING,ECCENTRIC

✓ Government record, cited
Ricoh · BALL BEARING
PRODUCT OVERVIEW

402550: BUSHING,ECCENTRIC.

Ricoh has a strong reputation for the quality of its laser copiers offering an excellent quality-price ratio and a very good reliability. And success this supports the complementarity of its products which offers everyday comfort. Ricoh offers a wide range of products specially designed to enhance your image and increase your productivity.

This part is cataloged in the U.S. Government catalog under NSN 3120-01-062-1630, 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
402550
NSN: 3120-01-062-1630
NIINs: 010621630, 016548004
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 57712 — TELEMECHANICS INC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL,BLACK OXIDE,0.312 IN. WIDTH ACROSS FLATS,0.119 IN. LG,0.114 IN. DIA HOLE LOCATED 0.050 IN. BELOW CENTERLINE IN
NSN3120-01-062-1630
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 402550 · Ricoh ⚠ 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,BLACK OXIDE,0.312 IN. WIDTH ACROSS FLATS,0.119 IN. LG,0.114 IN. DIA HOLE LOCATED 0.050 IN. BELOW CENTERLINE IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,BLACK OXIDE,0.312 IN. WIDTH ACROSS FLATS,0.119 IN. LG,0.114 IN. DIA HOLE LOCATED 0.050 IN. BELOW CENTERLINE IN
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 402550?
402550 is a BUSHING,ECCENTRIC manufactured by Ricoh.
What is the NSN for 402550?
402550 is cataloged in the U.S. Government catalog under NSN 3120-01-062-1630. 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.