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BRG-641 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

BRG-641: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL OUTER LAYER, corner_shape: SQUARE ALL CORNERS, overall_length: 0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.7650 INCHES MINIMUM AND 0.7750 INCHES MAXIMUM IN, body_outside_diameter: 0.8750 INCHES MINIMUM AND 0.8770 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-447-7818, 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
BRG-641
NSN: 3120-00-447-7818
NIINs: 004477818, 012596243
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 0AT62 — SIEMENS ENERGY, INC. DBA DRESSER-RAND (USA)
SPECIFICATIONS
materialSTEEL OUTER LAYER
corner_shapeSQUARE ALL CORNERS
overall_length0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.7650 INCHES MINIMUM AND 0.7750 INCHES MAXIMUM IN
body_outside_diameter0.8750 INCHES MINIMUM AND 0.8770 INCHES MAXIMUM IN
NSN3120-00-447-7818
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: BRG-641 · 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: 0.8750 INCHES MINIMUM AND 0.8770 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 0.7650 INCHES MINIMUM AND 0.7750 INCHES MAXIMUM IN
•
MATERIAL: STEEL OUTER LAYER
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.8750 INCHES MINIMUM AND 0.8770 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.7650 INCHES MINIMUM AND 0.7750 INCHES MAXIMUM IN
MATERIALSTEEL OUTER LAYER
MATERIALPLASTIC FLUOROCARBON INNER LAYER
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 BRG-641?
BRG-641 is a BEARING,SLEEVE.
What is the NSN for BRG-641?
BRG-641 is cataloged in the U.S. Government catalog under NSN 3120-00-447-7818. 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.