PartsTable
Technical Data Sheet
Download PDF

9HA784 — HOSE,AIR DUCT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

9HA784: HOSE,AIR DUCT.

The HOSE,AIR DUCT is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q ALL PLIES, connection_type: SOFT FIRST END, inside_diameter: 6.350 INCHES NOMINAL FIRST END IN, connection_style: ROUND FIRST END, special_features: CONT OPERATING AT 230 DEG CELSUIS/450 DEG FAHRENHEIT, style_designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-491-1374, 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
9HA784
NSN: 4720-01-491-1374
FSC: 4720 — Hose and Flexible Tubing
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q ALL PLIES
connection_typeSOFT FIRST END
inside_diameter6.350 INCHES NOMINAL FIRST END IN
connection_styleROUND FIRST END
special_featuresCONT OPERATING AT 230 DEG CELSUIS/450 DEG FAHRENHEIT
style_designatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
end_overall_length1.500 INCHES NOMINAL FIRST END IN
operating_pressure60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
end_inside_diameter6.350 INCHES NOMINAL FIRST END IN
end_item_identification2320014652174
cross-sectional_shape_styleROUND
measuring_method_and_length17.250 INCHES NOMINAL OVERALL IN
NSN4720-01-491-1374
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 9HA784 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MEASURING METHOD AND LENGTH: 17.250 INCHES NOMINAL OVERALL IN
•
CONNECTION STYLE: ROUND FIRST END
•
CONNECTION TYPE: SOFT FIRST END
•
STYLE DESIGNATOR: HELICALLY WOUND CONTINOUS WIRE SUPPORTED
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OPERATING PRESSURE: 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
INSIDE DIAMETER: 6.350 INCHES NOMINAL FIRST END IN
•
END OVERALL LENGTH: 1.500 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH17.250 INCHES NOMINAL OVERALL IN
CONNECTION STYLEROUND FIRST END
CONNECTION TYPESOFT FIRST END
STYLE DESIGNATORHELICALLY WOUND CONTINOUS WIRE SUPPORTED
CROSS-SECTIONAL SHAPE STYLEROUND
OPERATING PRESSURE60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
INSIDE DIAMETER6.350 INCHES NOMINAL FIRST END IN
END OVERALL LENGTH1.500 INCHES NOMINAL FIRST END IN
SPECIAL FEATURESCONT OPERATING AT 230 DEG CELSUIS/450 DEG FAHRENHEIT
END INSIDE DIAMETER6.350 INCHES NOMINAL FIRST END IN
OTHER ITEMS IN FSC 4720 — Hose and Flexible Tubing
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4720-00-000-0080 4720-00-000-0081 4720-00-000-0084 4720-00-000-0724 4720-00-001-0014 4720-00-001-0015 4720-00-001-0023 4720-00-001-0025
SUBSTITUTES & CROSS-REFERENCES 2
400729-139Reference document
Same NSN cross-reference
Reference document — Secondary reference
162-7490Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 9HA784?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 9HA784?
9HA784 is a HOSE,AIR DUCT.
What parts can replace 9HA784?
There are 2 known substitutes for 9HA784: 400729-139, 162-7490. Substitute compatibility should be verified for your specific system.
What is the NSN for 9HA784?
9HA784 is cataloged in the U.S. Government catalog under NSN 4720-01-491-1374. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 9HA784

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.