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4403555 PIECE 31 — BEARING,WASHER,THRUST

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

4403555 PIECE 31: BEARING,WASHER,THRUST.

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include diameter: 1.0156 INCHES NOMINAL IN, material: COPPER ALLOY 841 OVERALL, corner_shape: SQUARE ALL CORNERS, outside_diameter: 1.7500 INCHES NOMINAL IN, style_designator: ROUND, overall_thickness: 0.1250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-446-5225, 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
4403555 PIECE 31
NSN: 3120-01-446-5225
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
diameter1.0156 INCHES NOMINAL IN
materialCOPPER ALLOY 841 OVERALL
corner_shapeSQUARE ALL CORNERS
outside_diameter1.7500 INCHES NOMINAL IN
style_designatorROUND
overall_thickness0.1250 INCHES NOMINAL IN
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN3120-01-446-5225
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 4403555 PIECE 31 · 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: SQUARE ALL CORNERS
•
OVERALL THICKNESS: 0.1250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND
•
DIAMETER: 1.0156 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 1.7500 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY 841 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
OVERALL THICKNESS0.1250 INCHES NOMINAL IN
STYLE DESIGNATORROUND
DIAMETER1.0156 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER1.7500 INCHES NOMINAL IN
MATERIALCOPPER ALLOY 841 OVERALL
CENTER HOLE SHAPE STYLEROUND
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4403555 PIECE 31?
4403555 PIECE 31 is a BEARING,WASHER,THRUST.
What is the NSN for 4403555 PIECE 31?
4403555 PIECE 31 is cataloged in the U.S. Government catalog under NSN 3120-01-446-5225. 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.