721-8217291-4 — BUSHING,SLEEVE

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

721-8217291-4: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, flange_width: 0.1870 INCHES NOMINAL IN, overall_length: 2.3570 INCHES NOMINAL IN, special_features: MATERIAL:MONEL 400 PER QQ-N-217, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 4.0060 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-652-2574, 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

721-8217291-4

NSN: 3120-01-652-2574
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)

SPECIFICATIONS

material	COPPER ALLOY OVERALL
flange_width	0.1870 INCHES NOMINAL IN
overall_length	2.3570 INCHES NOMINAL IN
special_features	MATERIAL:MONEL 400 PER QQ-N-217
style_designator	SOLID, EXTERNAL FLANGE ONE END
body_inside_diameter	4.0060 INCHES NOMINAL IN
body_outside_diameter	4.5025 INCHES NOMINAL IN
flange_outside_diameter	5.0000 INCHES NOMINAL IN
part_name_assigned_by_controlling_agency	KARON LINEDJOURNAL BEARING
NSN	3120-01-652-2574

COMPONENT DIAGRAM

KEY FEATURES

•

FLANGE OUTSIDE DIAMETER: 5.0000 INCHES NOMINAL IN

•

BODY OUTSIDE DIAMETER: 4.5025 INCHES NOMINAL IN

•

STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END

•

BODY INSIDE DIAMETER: 4.0060 INCHES NOMINAL IN

•

FLANGE WIDTH: 0.1870 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

FLANGE OUTSIDE DIAMETER	5.0000 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER	4.5025 INCHES NOMINAL IN
STYLE DESIGNATOR	SOLID, EXTERNAL FLANGE ONE END
OVERALL LENGTH	2.3570 INCHES NOMINAL IN
BODY INSIDE DIAMETER	4.0060 INCHES NOMINAL IN
SPECIAL FEATURES	MATERIAL:MONEL 400 PER QQ-N-217
FLANGE WIDTH	0.1870 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCY	KARON LINEDJOURNAL BEARING
MATERIAL	COPPER ALLOY 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

H861-6130-4Reference document

Same NSN cross-reference

Reference document — Secondary reference

218071508Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 721-8217291-4?

721-8217291-4 is a BUSHING,SLEEVE.

What parts can replace 721-8217291-4?

There are 2 known substitutes for 721-8217291-4: H861-6130-4, 218071508. Substitute compatibility should be verified for your specific system.

What is the NSN for 721-8217291-4?

721-8217291-4 is cataloged in the U.S. Government catalog under NSN 3120-01-652-2574. This indicates validated use in U.S. government and defense supply chains.

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721-8217291-4 — BUSHING,SLEEVE

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