4M139BC8-30 — BUSHING,SLEEVE

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

4M139BC8-30: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 172 OR COPPER ALLOY 173 OVERALL, corner_shape: SQUARE INSIDE LEFT CORNER, flange_width: 0.0600 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN, overall_length: 0.3588 INCHES MINIMUM AND 0.3670 INCHES MAXIMUM IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 0.4935 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-166-4433, 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

4M139BC8-30

NSN: 3120-01-166-4433
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	COPPER ALLOY 172 OR COPPER ALLOY 173 OVERALL
corner_shape	SQUARE INSIDE LEFT CORNER
flange_width	0.0600 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN
overall_length	0.3588 INCHES MINIMUM AND 0.3670 INCHES MAXIMUM IN
style_designator	SOLID, EXTERNAL FLANGE ONE END
body_inside_diameter	0.4935 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN
body_outside_diameter	0.6267 INCHES MINIMUM AND 0.6275 INCHES MAXIMUM IN
flange_outside_diameter	0.7400 INCHES MINIMUM AND 0.7600 INCHES MAXIMUM IN
material_document_and_classification	QQ-C-530 COND H T FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN	3120-01-166-4433

COMPONENT DIAGRAM

KEY FEATURES

•

CORNER SHAPE: SQUARE INSIDE RIGHT CORNER

•

FLANGE OUTSIDE DIAMETER: 0.7400 INCHES MINIMUM AND 0.7600 INCHES MAXIMUM IN

•

BODY OUTSIDE DIAMETER: 0.6267 INCHES MINIMUM AND 0.6275 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

CORNER SHAPE	SQUARE INSIDE RIGHT CORNER
CORNER SHAPE	SQUARE OUTSIDE RIGHT CORNER
CORNER SHAPE	SQUARE OUTSIDE LEFT CORNER
CORNER SHAPE	SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPE	SQUARE INSIDE LEFT CORNER
CORNER SHAPE	UNDERCUT LEFT FLANGE BODY CORNER
FLANGE OUTSIDE DIAMETER	0.7400 INCHES MINIMUM AND 0.7600 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER	0.6267 INCHES MINIMUM AND 0.6275 INCHES MAXIMUM IN
STYLE DESIGNATOR	SOLID, EXTERNAL FLANGE ONE END
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C-530 COND H T FED SPEC ALL MATERIAL RESPONSES OVERALL

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

ST4M139BC8-30Reference document

Same NSN cross-reference

Reference document — Secondary reference

10198868Reference document

Same NSN cross-reference

Reference document — Informative reference only

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 4M139BC8-30?

4M139BC8-30 is a BUSHING,SLEEVE.

What parts can replace 4M139BC8-30?

There are 2 known substitutes for 4M139BC8-30: ST4M139BC8-30, 10198868. Substitute compatibility should be verified for your specific system.

What is the NSN for 4M139BC8-30?

4M139BC8-30 is cataloged in the U.S. Government catalog under NSN 3120-01-166-4433. This indicates validated use in U.S. government and defense supply chains.

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