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Technical Data Sheet
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50946 — SHAFT,SHOULDERED

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

50946: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, overall_length: 3.765 INCHES NOMINAL IN, end_item_identification: V 22, part_name_assigned_by_controlling_agency: CAM BEARING SLEEVE. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-394-8550, 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
50946
NSN: 3120-00-394-8550
NIINs: 003948550, 005984987, 011791923, 016080349
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL
step_quantity1
overall_length3.765 INCHES NOMINAL IN
end_item_identificationV 22
part_name_assigned_by_controlling_agencyCAM BEARING SLEEVE
NSN3120-00-394-8550
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 50946 · 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
•
LEFT INTERNAL FLANGE WIDTH: 0.3906 INCHES NOMINAL IN
•
LEFT INTERNAL FLANGE HOLE DIAMETER: 0.3125 INCHES NOMINAL IN
•
CORNER SHAPE: ROUND OUTSIDE LEFT CORNER
TECHNICAL CHARACTERISTICS
LEFT INTERNAL FLANGE WIDTH0.3906 INCHES NOMINAL IN
LEFT INTERNAL FLANGE HOLE DIAMETER0.3125 INCHES NOMINAL IN
CORNER SHAPEROUND OUTSIDE LEFT CORNER
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE RIGHT FLANGE BODY CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE RIGHT FLANGE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
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 50946?
50946 is a SHAFT,SHOULDERED.
What is the NSN for 50946?
50946 is cataloged in the U.S. Government catalog under NSN 3120-00-394-8550. 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.