4720-01-197-6932 HOSE,AIR DUCT Index 4720-01-197-6934 HOSE,AIR DUCT

National Stock Number:
4720-01-197-6933

Federal Supply Class:
4720

National Item Identification Number:
011976933

Description:
HOSE,AIR DUCT

Detail:
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.


Manufacturer Information:
518886453711NAVAL SEA SYSTEMS COMMAND
MIL-H-6202881349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
MATERIALFIBERGLASS AND
RUBBER SILICONE CLASS Q 1ST PLY
FIBERGLASS AND
RUBBER SILICONE CLASS Q 2ND PLY
FIBERGLASS 3RD PLY
STEEL AND
COPPER REINFORCING WIRE
STYLE DESIGNATORHELICALLY WOUND CONTINOUS WIRE SUPPORTED
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE DIAMETER4.000 INCHES NOMINAL FIRST END
WALL THICKNESS0.030 INCHES MINIMUM
MEASURING METHOD AND LENGTH53.000 INCHES NOMINAL OVERALL
CONNECTION TYPESOFT FIRST END
SOFT SECOND END
CONNECTION STYLEROUND BOTH ENDS
END INSIDE DIAMETER4.000 INCHES NOMINAL FIRST END
3.000 INCHES NOMINAL SECOND END
END OVERALL LENGTH2.000 INCHES NOMINAL FIRST END
2.000 INCHES NOMINAL SECOND END
MAXIMUM OPERATING PRESSURE5.0 POUNDS PER SQUARE INCH
EXTERNAL OPERATING PRESSURE5.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDOZONE RESISTANT
SPECIAL FEATURES20.000 INCHES IN FROM FIRST END,HOSE REDUCES TO 3.310 IN. DIA
SPECIFICATION/STANDARD DATA81349-MIL-H-62028 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA1 TYPE AND
1 CLASS
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMIL-H-62028


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