B303503 — BEARING,WASHER,THRUST

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

B303503: BEARING,WASHER,THRUST.

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include diameter: 3.8750 INCHES NOMINAL IN, material: OIL LUBRICATING LUBRICATION, corner_shape: SQUARE ALL CORNERS, outside_diameter: 7.9900 INCHES MINIMUM AND 7.9950 INCHES MAXIMUM IN, style_designator: ROUND, overall_thickness: 0.3125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-033-1222, 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

B303503

NSN: 3120-01-033-1222
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 3X894 — CONTROL FLOW, INC. DBA CONTROL FLOW INC (USA)

SPECIFICATIONS

diameter	3.8750 INCHES NOMINAL IN
material	OIL LUBRICATING LUBRICATION
corner_shape	SQUARE ALL CORNERS
outside_diameter	7.9900 INCHES MINIMUM AND 7.9950 INCHES MAXIMUM IN
style_designator	ROUND
overall_thickness	0.3125 INCHES NOMINAL IN
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
material_document_and_classification	MIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN	3120-01-033-1222

COMPONENT DIAGRAM

KEY FEATURES

•

CORNER SHAPE: SQUARE ALL CORNERS

•

OVERALL THICKNESS: 0.3125 INCHES NOMINAL IN

•

STYLE DESIGNATOR: ROUND

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

•

DIAMETER: 3.8750 INCHES NOMINAL IN

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

OUTSIDE DIAMETER: 7.9900 INCHES MINIMUM AND 7.9950 INCHES MAXIMUM IN

•

MATERIAL: COPPER ALLOY OVERALL

TECHNICAL CHARACTERISTICS

CORNER SHAPE	SQUARE ALL CORNERS
OVERALL THICKNESS	0.3125 INCHES NOMINAL IN
STYLE DESIGNATOR	ROUND
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
DIAMETER	3.8750 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
OUTSIDE DIAMETER	7.9900 INCHES MINIMUM AND 7.9950 INCHES MAXIMUM IN
MATERIAL	COPPER ALLOY OVERALL
MATERIAL	OIL LUBRICATING LUBRICATION
CENTER HOLE SHAPE STYLE	ROUND

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 1

PLD301087PC122Reference 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 B303503?

B303503 is a BEARING,WASHER,THRUST.

What parts can replace B303503?

There is 1 known substitute for B303503: PLD301087PC122. Substitute compatibility should be verified for your specific system.

What is the NSN for B303503?

B303503 is cataloged in the U.S. Government catalog under NSN 3120-01-033-1222. This indicates validated use in U.S. government and defense supply chains.

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B303503 — BEARING,WASHER,THRUST

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