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54648 — BEARING,PLAIN,SELF-ALIGNING

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

54648: BEARING,PLAIN,SELF-ALIGNING.

The BEARING,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: STEEL, nominal_overall_length: 56.750 INCHES IN, nominal_outside_diameter: 2.000 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-132-1962, 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
54648
NSN: 3120-00-132-1962
NIINs: 001321962, 005378260, 011224135
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 99167 — HAMILTON SUNDSTRAND CORPORATION (USA)
SPECIFICATIONS
materialSTEEL
nominal_overall_length56.750 INCHES IN
nominal_outside_diameter2.000 INCHES IN
NSN3120-00-132-1962
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 54648 · 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
•
INNER MEMBER WIDTH: 0.8700 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM INNER MEMBER
•
OUTER MEMBER WIDTH: 0.6980 INCHES MINIMUM AND 0.7080 INCHES MAXIMUM IN
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STYLE DESIGNATOR: WITHOUT INSERT OR LINER
•
LUBRICATION FEATURE: GROOVE INTERNAL OUTER MEMBER
•
SURFACE TREATMENT: CHROMIUM INNER MEMBER
•
BORE DIAMETER: 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
INNER MEMBER WIDTH0.8700 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM INNER MEMBER
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
OUTER MEMBER WIDTH0.6980 INCHES MINIMUM AND 0.7080 INCHES MAXIMUM IN
STYLE DESIGNATORWITHOUT INSERT OR LINER
LUBRICATION FEATUREGROOVE INTERNAL OUTER MEMBER
SURFACE TREATMENTCHROMIUM INNER MEMBER
BORE DIAMETER0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
MATERIALSTEEL COMP 440C INNER MEMBER
MATERIALSTEEL OUTER RACE MEMBER
SUBSTITUTES & CROSS-REFERENCES 1
C0R14Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 54648?
54648 is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace 54648?
There is 1 known substitute for 54648: C0R14. Substitute compatibility should be verified for your specific system.
What is the NSN for 54648?
54648 is cataloged in the U.S. Government catalog under NSN 3120-00-132-1962. 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.