ST4M139BC7-18 — BUSHING,SLEEVE

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

ST4M139BC7-18: 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: 0.2350 INCHES MINIMUM AND 0.2470 INCHES MAXIMUM IN, surface_finish: 125.0 MICROINCHES INTERMEDIATE LAYER, style_designator: SOLID, EXTERNAL FLANGE ONE END. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-024-7609, 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

ST4M139BC7-18

NSN: 3120-01-024-7609
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 59563 — REID PRODUCTS INC. DBA REID PRODUCTS INC (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	0.2350 INCHES MINIMUM AND 0.2470 INCHES MAXIMUM IN
surface_finish	125.0 MICROINCHES INTERMEDIATE LAYER
style_designator	SOLID, EXTERNAL FLANGE ONE END
body_inside_diameter	0.4310 INCHES MINIMUM AND 0.4325 INCHES MAXIMUM IN
body_outside_diameter	0.5641 INCHES MINIMUM AND 0.5648 INCHES MAXIMUM IN
flange_outside_diameter	0.6770 INCHES MINIMUM AND 0.6970 INCHES MAXIMUM IN
material_document_and_classification	QQ-C-530,HT FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN	3120-01-024-7609

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 125.0 MICROINCHES INTERMEDIATE LAYER

•

CORNER SHAPE: SQUARE INSIDE RIGHT CORNER

•

FLANGE OUTSIDE DIAMETER: 0.6770 INCHES MINIMUM AND 0.6970 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	125.0 MICROINCHES INTERMEDIATE LAYER
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	0.6770 INCHES MINIMUM AND 0.6970 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER	0.5641 INCHES MINIMUM AND 0.5648 INCHES MAXIMUM IN
STYLE DESIGNATOR	SOLID, EXTERNAL FLANGE ONE END

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

4M139BC7-18Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

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 ST4M139BC7-18?

ST4M139BC7-18 is a BUSHING,SLEEVE.

What parts can replace ST4M139BC7-18?

There is 1 known substitute for ST4M139BC7-18: 4M139BC7-18. Substitute compatibility should be verified for your specific system.

What is the NSN for ST4M139BC7-18?

ST4M139BC7-18 is cataloged in the U.S. Government catalog under NSN 3120-01-024-7609. This indicates validated use in U.S. government and defense supply chains.

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