Product Details | AIR DUCT HOSE

4720-00-257-0449 A flexible, tubular item of light wall construction. It must have single or multiple layers of nonmetallic material, but may contain metal wire reinforcement, foil type liner, and/or woven or braided cover. It is designed to convey under low pressure gaseous material, such as air and fumes, and light weight solid materials, such as dust, powders, and fibers. For items with couplings, see HOSE ASSEMBLY, AIR DUCT. For items of sleeve section design rated for high pressure use, see SLEEVE, SEAL, COUPLING. Excludes hose, nonmetallic.

Part Alternates: C2462412, C246-24-12, GEN20032412, GEN2003-24-12, 50062412, 5006-24-12, 712398-3.00-12, 71239830012, 712398-300-12, 4720-00-257-0449, 00-257-0449, 4720002570449, 002570449

Pipe, Tubing, Hose, and Fittings | Hose and Flexible Tubing

Supply Group (FSG) NSN Assign. NIIN
47 31 MAR 1971 00-257-0449

Drawings & Photos | NSN 4720-00-257-0449


Cross Reference | NSN 4720-00-257-0449

Part Number Cage Code Manufacturer
5006-24-12 99135 FLEXCO, INC.
712398-3.00-12 70628 ARROWHEAD PRODUCTS CORPORATION
712398-300-12 70628 ARROWHEAD PRODUCTS CORPORATION
C246-24-12 81755 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS
GEN2003-24-12 16632 FLEXFAB, LLC

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Technical Data | NSN 4720-00-257-0449

Characteristic Specifications
MATERIAL RUBBER SILICONE CLASS Q 1ST PLY FIBERGLASS AND RUBBER SILICONE CLASS Q 2ND PLY FIBERGLASS AND RUBBER SILICONE CLASS Q 3RD PLY
STYLE DESIGNATOR A5 SLEEVE SECTION
CROSS-SECTIONAL SHAPE STYLE B3 ROUND
INSIDE DIAMETER 3.000 INCHES NOMINAL FIRST END
MEASURING METHOD AND LENGTH 3.000 INCHES NOMINAL OVERALL
CONNECTION TYPE SOFT BOTH ENDS
CONNECTION STYLE C3 ROUND BOTH ENDS
END INSIDE DIAMETER 3.000 INCHES NOMINAL BOTH ENDS
END OVERALL LENGTH 0.167 INCHES NOMINAL BOTH ENDS
(NON-CORE DATA) TEMP RANGE -150.0 TO 450.0 DEG FAHRENHEIT

Restrictions/Controls & Freight Information | NSN 4720-00-257-0449

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 051035 DUCTS:AIR SYSTEM
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 736 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable