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Technical Data Sheet
PartsTable / COMPONENT / 8B783-057
8B783-057 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The HOSE,AIR DUCT is a the manufacturer industrial component. Key specifications include material: FIBERGLASS REINFORCING CORD, hose_weight: 1.750 OUNCES PER LINEAR FOOT OZ, wall_thickness: 0.050 INCHES NOMINAL IN, connection_type: SOFT FIRST END, inside_diameter: 2.500 INCHES NOMINAL FIRST END IN, connection_style: ROUND FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-217-6815, 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
8B783-057
NSN: 4720-00-217-6815
FSC: 4720
CAGE: 89446 — HILLER AIRCRAFT CORPORATION (USA)
SPECIFICATIONS
materialFIBERGLASS REINFORCING CORD
hose_weight1.750 OUNCES PER LINEAR FOOT OZ
wall_thickness0.050 INCHES NOMINAL IN
connection_typeSOFT FIRST END
inside_diameter2.500 INCHES NOMINAL FIRST END IN
connection_styleROUND FIRST END
style_designatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
end_overall_length1.500 INCHES NOMINAL FIRST END IN
operating_pressure20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
end_inside_diameter2.500 INCHES NOMINAL FIRST END IN
cross-sectional_shape_styleROUND
measuring_method_and_length54.000 INCHES NOMINAL OVERALL IN
NSN4720-00-217-6815
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 8B783-057 · 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
•
INSIDE DIAMETER: 6.500 INCHES NOMINAL FIRST END IN
•
END OVERALL LENGTH: 1.500 INCHES NOMINAL BOTH ENDS IN
•
MATERIAL: FIBERGLASS AND RUBBER SILICONE CLASS Q REINFORCING CORD
•
CONNECTION TYPE: SOFT BOTH ENDS
•
OPERATING PRESSURE: 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
STYLE DESIGNATOR: HELICALLY WOUND CONTINOUS WIRE SUPPORTED
•
MEASURING METHOD AND LENGTH: 19.000 INCHES NOMINAL OVERALL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER6.500 INCHES NOMINAL FIRST END IN
END OVERALL LENGTH1.500 INCHES NOMINAL BOTH ENDS IN
MATERIALFIBERGLASS AND RUBBER SILICONE CLASS Q REINFORCING CORD
MATERIALFIBERGLASS AND RUBBER SILICONE CLASS Q SECOND PLY
CONNECTION TYPESOFT BOTH ENDS
OPERATING PRESSURE5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
STYLE DESIGNATORHELICALLY WOUND CONTINOUS WIRE SUPPORTED
MEASURING METHOD AND LENGTH19.000 INCHES NOMINAL OVERALL IN
MATERIALSTEEL CORROSION RESISTING REINFORCING WIRE
MATERIALFIBERGLASS AND RUBBER SILICONE CLASS Q FIRST PLY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
31310Interchangeable
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322235Interchangeable
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R4303SInterchangeable
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GGG-F-331 TY18CL6Interchangeable
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GGG-F-331Interchangeable
interchangeable cross-reference
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A-A-2447Interchangeable
interchangeable cross-reference
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LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8B783-057?
8B783-057 is a HOSE,AIR DUCT.
What parts can replace 8B783-057?
There are 23 known substitutes for 8B783-057: 31310, 322235, R4303S and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8B783-057?
8B783-057 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-217-6815. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026