B643-1023-F19 — COUPLING,AIR DUCT

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

B643-1023-F19: COUPLING,AIR DUCT.

The COUPLING,AIR DUCT is a the manufacturer industrial component. Key specifications include overall_length: 2.500 INCHES NOMINAL IN, overall_diameter: 8.880 INCHES NOMINAL IN, end_item_identification: MISC PARTSVENTILATION, criticality_code_justification: FEAT, general_characteristics_item_description: SYNTHETIC RUBBER, MIL-R-6855/5 STYLE A, part_name_assigned_by_controlling_agency: FLEXIBLE CONNECTION. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-546-3550, 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

B643-1023-F19

NSN: 4730-01-546-3550
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)

SPECIFICATIONS

overall_length	2.500 INCHES NOMINAL IN
overall_diameter	8.880 INCHES NOMINAL IN
special_features	WEAPON SYSTEM ESSENTIAL; ROUND FLEXIBLE, 8.88" O.D., 5.500" I.D.; EDGE AS 1.69" WIDE MOUNTING FLANGE .187" THHICK; MOUNTING HOLES DRILLED DURING INSTALLATION
end_item_identification	MISC PARTSVENTILATION
criticality_code_justification	FEAT
general_characteristics_item_description	SYNTHETIC RUBBER, MIL-R-6855/5 STYLE A
part_name_assigned_by_controlling_agency	FLEXIBLE CONNECTION
NSN	4730-01-546-3550

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 8.880 INCHES NOMINAL IN

•

GENERAL CHARACTERISTICS ITEM DESCRIPTION: SYNTHETIC RUBBER, MIL-R-6855/5 STYLE A

•

CRITICALITY CODE JUSTIFICATION: FEAT

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	8.880 INCHES NOMINAL IN
GENERAL CHARACTERISTICS ITEM DESCRIPTION	SYNTHETIC RUBBER, MIL-R-6855/5 STYLE A
CRITICALITY CODE JUSTIFICATION	FEAT
OVERALL LENGTH	2.500 INCHES NOMINAL IN
SPECIAL FEATURES	WEAPON SYSTEM ESSENTIAL; ROUND FLEXIBLE, 8.88" O.D., 5.500" I.D.; EDGE AS 1.69" WIDE MOUNTING FLANGE .187" THHICK; MOUNTING HOLES DRILLED DURING INSTALLATION
PART NAME ASSIGNED BY CONTROLLING AGENCY	FLEXIBLE CONNECTION
END ITEM IDENTIFICATION	MISC PARTSVENTILATION

OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

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

4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008

SUBSTITUTES & CROSS-REFERENCES 3

211071069Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

DF2680-1556 FN 156Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

512-7410974-F19Same 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 B643-1023-F19?

B643-1023-F19 is a COUPLING,AIR DUCT.

What parts can replace B643-1023-F19?

There are 3 known substitutes for B643-1023-F19: 211071069, DF2680-1556 FN 156, 512-7410974-F19. Substitute compatibility should be verified for your specific system.

What is the NSN for B643-1023-F19?

B643-1023-F19 is cataloged in the U.S. Government catalog under NSN 4730-01-546-3550. This indicates validated use in U.S. government and defense supply chains.

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