H4-020 — BUSHING,SLEEVE

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

H4-020: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OR STEEL COMP 321 OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.1950 INCHES MINIMUM AND 0.2000 INCHES MAXIMUM IN, surface_finish: 125.0 MICROINCHES RIGHT END SURFACE OF BODY, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, surface_treatment: CHROMIUM OUTSIDE DIAMETER SURFACE OF BODY. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-042-8908, 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

H4-020

NSN: 3120-01-042-8908
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 73134 — ROLLER BEARING COMPANY OF AMERICA, INC. (USA)

SPECIFICATIONS

material	STEEL COMP 630 OR STEEL COMP 321 OVERALL
corner_shape	SQUARE ALL CORNERS
overall_length	0.1950 INCHES MINIMUM AND 0.2000 INCHES MAXIMUM IN
surface_finish	125.0 MICROINCHES RIGHT END SURFACE OF BODY
style_designator	SOLID, PLAIN, NO OUTSIDE FLANGES
surface_treatment	CHROMIUM OUTSIDE DIAMETER SURFACE OF BODY
body_inside_diameter	0.2500 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN
body_outside_diameter	0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
surface_treatment_document_and_classification	QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE DIAMETER SURFACE OF BODY
NSN	3120-01-042-8908

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 8.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY

•

CORNER SHAPE: SQUARE ALL CORNERS

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE DIAMETER SURFACE OF BODY

•

BODY OUTSIDE DIAMETER: 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN

•

STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES

TECHNICAL CHARACTERISTICS

SURFACE FINISH	8.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH	125.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE FINISH	125.0 MICROINCHES LEFT END SURFACE OF BODY
SURFACE FINISH	125.0 MICROINCHES INNER MEMBER
CORNER SHAPE	SQUARE ALL CORNERS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE DIAMETER SURFACE OF BODY
BODY OUTSIDE DIAMETER	0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
STYLE DESIGNATOR	SOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH	0.1950 INCHES MINIMUM AND 0.2000 INCHES MAXIMUM IN
BODY INSIDE DIAMETER	0.2500 INCHES MINIMUM AND 0.2515 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 2

SJ6H8-020Reference document

Same NSN cross-reference

Reference document — Secondary reference

GL519A4-020Reference document

Same NSN cross-reference

Reference document — Vendor item drawing 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 H4-020?

H4-020 is a BUSHING,SLEEVE.

What parts can replace H4-020?

There are 2 known substitutes for H4-020: SJ6H8-020, GL519A4-020. Substitute compatibility should be verified for your specific system.

What is the NSN for H4-020?

H4-020 is cataloged in the U.S. Government catalog under NSN 3120-01-042-8908. This indicates validated use in U.S. government and defense supply chains.

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