GB21A5 — HEAT SINK,ELECTRICAL-ELECTRONIC

✓ Government record, cited

— · FAN MODULE

PRODUCT OVERVIEW

GB21A5: HEAT SINK,ELECTRICAL-ELECTRONIC.

HEAT SINK,ELECTRICAL-ELECTRONIC. Key specifications include material: ALUMINUM ALLOY 6061, overall_height: 0.218 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN, overall_diameter: 1.000 INCHES NOMINAL IN, surface_treatment: TIN, unthreaded_mounting_hole_diameter: 0.165 INCHES MINIMUM AND 0.171 INCHES MAXIMUM SECOND MOUNTING FACILITY IN, mounting_facility_type_and_quantity: 1 UNTHREADED HOLE(S) THIRD MOUNTING FACILITY. This part is cataloged in the U.S.

Government catalog under NSN 5999-01-321-9172, 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

GB21A5

NSN: 5999-01-321-9172
FSC: 5999 — Miscellaneous Electrical and Electronic Components
CAGE: 98093 — NASSAU CORP (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 6061
overall_height	0.218 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
overall_diameter	1.000 INCHES NOMINAL IN
surface_treatment	TIN
unthreaded_mounting_hole_diameter	0.165 INCHES MINIMUM AND 0.171 INCHES MAXIMUM SECOND MOUNTING FACILITY IN
mounting_facility_type_and_quantity	1 UNTHREADED HOLE(S) THIRD MOUNTING FACILITY
material_document_and_classification	QQ-A-200 FED SPEC SINGLE MATERIAL RESPONSE
NSN	5999-01-321-9172

COMPONENT DIAGRAM

KEY FEATURES

•

MOUNTING FACILITY TYPE AND QUANTITY: 1 UNTHREADED HOLE(S) THIRD MOUNTING FACILITY

•

OVERALL DIAMETER: 1.000 INCHES NOMINAL IN

•

UNTHREADED MOUNTING HOLE DIAMETER: 0.146 INCHES MINIMUM AND 0.152 INCHES MAXIMUM FIRST MOUNTING FACILITY IN

TECHNICAL CHARACTERISTICS

MOUNTING FACILITY TYPE AND QUANTITY	1 UNTHREADED HOLE(S) THIRD MOUNTING FACILITY
MOUNTING FACILITY TYPE AND QUANTITY	5 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY
MOUNTING FACILITY TYPE AND QUANTITY	5 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY
OVERALL HEIGHT	0.218 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
OVERALL DIAMETER	1.000 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETER	0.146 INCHES MINIMUM AND 0.152 INCHES MAXIMUM FIRST MOUNTING FACILITY IN
UNTHREADED MOUNTING HOLE DIAMETER	0.165 INCHES MINIMUM AND 0.171 INCHES MAXIMUM SECOND MOUNTING FACILITY IN
UNTHREADED MOUNTING HOLE DIAMETER	0.200 INCHES MINIMUM AND 0.206 INCHES MAXIMUM THIRD MOUNTING FACILITY IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-200 FED SPEC SINGLE MATERIAL RESPONSE
SURFACE TREATMENT	TIN

OTHER ITEMS IN FSC 5999 — Miscellaneous Electrical and Electronic Components

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5999-00-001-1345 5999-00-001-1346 5999-00-001-1348 5999-00-001-1349 5999-00-001-1355 5999-00-001-1623 5999-00-001-2537 5999-00-001-2539

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 GB21A5?

GB21A5 is a HEAT SINK,ELECTRICAL-ELECTRONIC.

What is the NSN for GB21A5?

GB21A5 is cataloged in the U.S. Government catalog under NSN 5999-01-321-9172. This indicates validated use in U.S. government and defense supply chains.

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GB21A5 — HEAT SINK,ELECTRICAL-ELECTRONIC

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