4R0731 — BEARING,SLEEVE

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

4R0731: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include corner_shape: SQUARE ALL CORNERS, overall_length: 1.3650 INCHES MINIMUM AND 1.3850 INCHES MAXIMUM IN, surface_finish: 100.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY, hardness_rating: 60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM OVERALL, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, features_provided: CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-013-9709, 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

4R0731

NSN: 3120-01-013-9709
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)

SPECIFICATIONS

material	STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
corner_shape	SQUARE ALL CORNERS
overall_length	1.3650 INCHES MINIMUM AND 1.3850 INCHES MAXIMUM IN
surface_finish	100.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
hardness_rating	60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM OVERALL
style_designator	SOLID, PLAIN, NO OUTSIDE FLANGES
features_provided	CASEHARDENED
body_inside_diameter	2.0076 INCHES MINIMUM AND 2.0092 INCHES MAXIMUM IN
body_outside_diameter	2.5030 INCHES MINIMUM AND 2.5040 INCHES MAXIMUM IN
material_document_and_classification	ASTM A519 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN	3120-01-013-9709

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 63.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY

•

CORNER SHAPE: SQUARE ALL CORNERS

•

BODY OUTSIDE DIAMETER: 2.5030 INCHES MINIMUM AND 2.5040 INCHES MAXIMUM IN

•

HARDNESS RATING: 60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM OVERALL

•

STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A519 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

TECHNICAL CHARACTERISTICS

SURFACE FINISH	63.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH	100.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
CORNER SHAPE	SQUARE ALL CORNERS
BODY OUTSIDE DIAMETER	2.5030 INCHES MINIMUM AND 2.5040 INCHES MAXIMUM IN
HARDNESS RATING	60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATOR	SOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A519 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH	1.3650 INCHES MINIMUM AND 1.3850 INCHES MAXIMUM IN
FEATURES PROVIDED	CASEHARDENED
BODY INSIDE DIAMETER	2.0076 INCHES MINIMUM AND 2.0092 INCHES MAXIMUM IN

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

4R731Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 4R0731?

4R0731 is a BEARING,SLEEVE.

What parts can replace 4R0731?

There is 1 known substitute for 4R0731: 4R731. Substitute compatibility should be verified for your specific system.

What is the NSN for 4R0731?

4R0731 is cataloged in the U.S. Government catalog under NSN 3120-01-013-9709. This indicates validated use in U.S. government and defense supply chains.

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4R0731 — BEARING,SLEEVE

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