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7409748 — COUPLING,SHAFT,RIGID

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

7409748: COUPLING,SHAFT,RIGID.

The COUPLING,SHAFT,RIGID is a the manufacturer industrial component. Key specifications include end_item_identification: RAMMER MECH,SEAWOLF CLASS SSN. 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
7409748
NSN: 3120-00-706-9076
NIINs: 007069076, 014941469, 014941929, 014942046, 014955664, 014956321, 015031548, 015031776, 015031789, 015032068, 015032089, 015032139, 015032206, 015032216, 015032233
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
end_item_identificationRAMMER MECH,SEAWOLF CLASS SSN
NSN3120-00-706-9076
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 7409748 · 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
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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 4
1671N2Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 7409748?
7409748 is a COUPLING,SHAFT,RIGID.
What parts can replace 7409748?
There are 4 known substitutes for 7409748: 1671N2, 915561, KC9318 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7409748?
7409748 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.