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26478-1 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

26478-1: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: TITANIUM OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, nut_style: ROUND, nut_diameter: 0.236 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN, thread_class: 2B, nut_thickness: 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-494-2410, 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
26478-1
NSN: 3130-01-494-2410
FSC: 3130 — Bearings, Mounted
CAGE: 07070 — UNITED STATES DEPARTMENT OF THE NAVY DBA NAVAL SURFACE WARFARE CENTER PANAMA CITY (USA)
SPECIFICATIONS
materialTITANIUM OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
nut_styleROUND
nut_diameter0.236 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
thread_class2B
coil_quantity8
nut_thickness0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
thread_seriesUNF
overall_length24.0 INCHES IN
inside_diameter0.625 INCHES NOMINAL IN
outside_diameter4.3750 INCHES NOMINAL IN
style_designatorPROTRUDING HUBS
NSN3130-01-494-2410
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 26478-1 · 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 1
26478Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 26478-1?
26478-1 is a HOUSING,BEARING UNIT.
What parts can replace 26478-1?
There is 1 known substitute for 26478-1: 26478. Substitute compatibility should be verified for your specific system.
What is the NSN for 26478-1?
26478-1 is cataloged in the U.S. Government catalog under NSN 3130-01-494-2410. This indicates validated use in U.S. government and defense supply chains.
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