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1671N2 — COUPLING,SHAFT,RIGID

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

1671N2: COUPLING,SHAFT,RIGID.

The COUPLING,SHAFT,RIGID is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, corner_shape: CHAMFERED ALL CORNERS, overall_length: 7.7500 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 2.4370 INCHES MINIMUM AND 2.4390 INCHES MAXIMUM IN, body_outside_diameter: 3.7500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-706-9076, 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
1671N2
NSN: 3120-00-706-9076
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
corner_shapeCHAMFERED ALL CORNERS
overall_length7.7500 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter2.4370 INCHES MINIMUM AND 2.4390 INCHES MAXIMUM IN
body_outside_diameter3.7500 INCHES NOMINAL IN
surface_groove_location_and_quantity1 EXTERNAL
NSN3120-00-706-9076
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 1671N2 · 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: CHAMFERED ALL CORNERS
•
BODY OUTSIDE DIAMETER: 3.7500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 2.4370 INCHES MINIMUM AND 2.4390 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
SURFACE GROOVE LOCATION AND QUANTITY: 1 EXTERNAL
TECHNICAL CHARACTERISTICS
CORNER SHAPECHAMFERED ALL CORNERS
BODY OUTSIDE DIAMETER3.7500 INCHES NOMINAL IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH7.7500 INCHES NOMINAL IN
BODY INSIDE DIAMETER2.4370 INCHES MINIMUM AND 2.4390 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SURFACE GROOVE LOCATION AND QUANTITY1 EXTERNAL
SUBSTITUTES & CROSS-REFERENCES 3
915561Reference document
Same NSN cross-reference
Reference document — Secondary reference
KC9318Reference document
Same NSN cross-reference
Reference document — Secondary reference
HCF470DReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1671N2?
1671N2 is a COUPLING,SHAFT,RIGID.
What parts can replace 1671N2?
There are 3 known substitutes for 1671N2: 915561, KC9318, HCF470D. Substitute compatibility should be verified for your specific system.
What is the NSN for 1671N2?
1671N2 is cataloged in the U.S. Government catalog under NSN 3120-00-706-9076. 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.