A51B21815-15 — BUSHING,SLEEVE

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

A51B21815-15: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, corner_shape: SQUARE INSIDE RIGHT CORNER, flange_width: 0.0620 INCHES NOMINAL IN, overall_length: 0.2620 INCHES NOMINAL 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 3120-01-024-8528, 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

A51B21815-15

NSN: 3120-01-024-8528
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)

SPECIFICATIONS

material	STEEL COMP 630 OVERALL
corner_shape	SQUARE INSIDE RIGHT CORNER
flange_width	0.0620 INCHES NOMINAL IN
overall_length	0.2620 INCHES NOMINAL IN
surface_finish	125.0 MICROINCHES INTERMEDIATE LAYER
style_designator	SOLID, EXTERNAL FLANGE ONE END
body_inside_diameter	0.3747 INCHES MINIMUM IN
body_outside_diameter	0.5010 INCHES NOMINAL IN
flange_outside_diameter	0.6250 INCHES NOMINAL IN
material_document_and_classification	AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN	3120-01-024-8528

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 125.0 MICROINCHES INTERMEDIATE LAYER

•

CORNER SHAPE: CHAMFERED INSIDE LEFT CORNER

•

FLANGE OUTSIDE DIAMETER: 0.6250 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	125.0 MICROINCHES INTERMEDIATE LAYER
CORNER SHAPE	CHAMFERED INSIDE LEFT CORNER
CORNER SHAPE	SQUARE INSIDE RIGHT CORNER
CORNER SHAPE	SQUARE LEFT FLANGE BODY CORNER
CORNER SHAPE	SQUARE OUTSIDE RIGHT CORNER
CORNER SHAPE	SQUARE OUTSIDE LEFT CORNER
CORNER SHAPE	SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
FLANGE OUTSIDE DIAMETER	0.6250 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER	0.5010 INCHES NOMINAL 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

A51B20641-13Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 A51B21815-15?

A51B21815-15 is a BUSHING,SLEEVE.

What parts can replace A51B21815-15?

There is 1 known substitute for A51B21815-15: A51B20641-13. Substitute compatibility should be verified for your specific system.

What is the NSN for A51B21815-15?

A51B21815-15 is cataloged in the U.S. Government catalog under NSN 3120-01-024-8528. This indicates validated use in U.S. government and defense supply chains.

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