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Technical Data Sheet
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55-1616 — SHAFT,SHOULDERED

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

55-1616: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include end_item_identification: 2320-01-047-8753. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-159-2771, 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
55-1616
NSN: 3120-00-159-2771
NIINs: 001592771, 005307628, 011255894
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 03591 — ANKER HOLTH DIV VICEROY FLUID POWER INC (USA)
SPECIFICATIONS
step_quantity3
end_item_identification2320-01-047-8753
NSN3120-00-159-2771
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 55-1616 · 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
•
SURFACE FINISH: 63.0 MICROINCHES OVERALL
•
CORNER SHAPE: SQUARE ALL CORNERS
•
LEFT END BODY DIAMETER: 1.1210 INCHES MINIMUM AND 1.1240 INCHES MAXIMUM IN
•
FLANGE OUTSIDE DIAMETER: 1.4350 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM IN
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END TO FLANGE DISTANCE: 0.2470 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE
•
BODY INSIDE DIAMETER: 0.6290 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES OVERALL
CORNER SHAPESQUARE ALL CORNERS
LEFT END BODY DIAMETER1.1210 INCHES MINIMUM AND 1.1240 INCHES MAXIMUM IN
FLANGE OUTSIDE DIAMETER1.4350 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM IN
END TO FLANGE DISTANCE0.2470 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE
OVERALL LENGTH1.1250 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.6290 INCHES NOMINAL IN
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
RIGHT END BODY DIAMETER1.1210 INCHES MINIMUM AND 1.1240 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
7000.604.068Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 55-1616?
55-1616 is a SHAFT,SHOULDERED.
What parts can replace 55-1616?
There is 1 known substitute for 55-1616: 7000.604.068. Substitute compatibility should be verified for your specific system.
What is the NSN for 55-1616?
55-1616 is cataloged in the U.S. Government catalog under NSN 3120-00-159-2771. 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.