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205-070-525-1 — HOSE ASSEMBLY,AIR DUCT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

205-070-525-1: HOSE ASSEMBLY,AIR DUCT.

The HOSE ASSEMBLY,AIR DUCT is a the manufacturer industrial component. Key specifications include material: STEEL REINFORCING WIRE, inside_length: 1.000 INCHES MINIMUM AND 2.000 INCHES MAXIMUM FIRST END IN, connection_type: THREADED BOTH ENDS, inside_diameter: 4.000 INCHES NOMINAL FIRST END IN, connection_style: ROUND BOTH ENDS, special_features: USES DUCT 205-070-523-3 AND ELBOW 205-070-474-3; CONNECTION TYPE: GROUND JOINT INTERNAL TAILPIECE W/ UNION NUT BOTH ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-950-6844, 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
205-070-525-1
NSN: 4720-00-950-6844
FSC: 4720 — Hose and Flexible Tubing
CAGE: D0216 — GENERAL ATOMICS AEROTEC SYSTEMS GMBH (DEU)
SPECIFICATIONS
materialSTEEL REINFORCING WIRE
inside_length1.000 INCHES MINIMUM AND 2.000 INCHES MAXIMUM FIRST END IN
connection_typeTHREADED BOTH ENDS
inside_diameter4.000 INCHES NOMINAL FIRST END IN
connection_styleROUND BOTH ENDS
special_featuresUSES DUCT 205-070-523-3 AND ELBOW 205-070-474-3; CONNECTION TYPE: GROUND JOINT INTERNAL TAILPIECE W/ UNION NUT BOTH ENDS
end_item_identificationUH-1H
cross-sectional_shape_styleROUND
measuring_method_and_length58.100 INCHES NOMINAL OVERALL IN
departure_from_cited_designatorRESIN-IMPREGNATED FIBERGLASS TO SURFACE IN CERTAIN AREAS
part_name_assigned_by_controlling_agencyDUCT; VALVE TO "T" DUCT AIR DISTRIBUTION, ASSY OF
NSN4720-00-950-6844
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 205-070-525-1 · 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: 58.100 INCHES NOMINAL OVERALL IN
•
INSIDE LENGTH: 1.000 INCHES MINIMUM AND 2.000 INCHES MAXIMUM FIRST END IN
•
CONNECTION STYLE: ROUND BOTH ENDS
•
CONNECTION TYPE: THREADED BOTH ENDS
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
DEPARTURE FROM CITED DESIGNATOR: RESIN-IMPREGNATED FIBERGLASS TO SURFACE IN CERTAIN AREAS
•
INSIDE DIAMETER: 4.000 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH58.100 INCHES NOMINAL OVERALL IN
INSIDE LENGTH1.000 INCHES MINIMUM AND 2.000 INCHES MAXIMUM FIRST END IN
CONNECTION STYLEROUND BOTH ENDS
CONNECTION TYPETHREADED BOTH ENDS
CROSS-SECTIONAL SHAPE STYLEROUND
DEPARTURE FROM CITED DESIGNATORRESIN-IMPREGNATED FIBERGLASS TO SURFACE IN CERTAIN AREAS
INSIDE DIAMETER4.000 INCHES NOMINAL FIRST END IN
SPECIAL FEATURESUSES DUCT 205-070-523-3 AND ELBOW 205-070-474-3; CONNECTION TYPE: GROUND JOINT INTERNAL TAILPIECE W/ UNION NUT BOTH ENDS
PART NAME ASSIGNED BY CONTROLLING AGENCYDUCT; VALVE TO "T" DUCT AIR DISTRIBUTION, ASSY OF
END ITEM IDENTIFICATIONUH-1H
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 205-070-525-1?
205-070-525-1 is a HOSE ASSEMBLY,AIR DUCT.
What is the NSN for 205-070-525-1?
205-070-525-1 is cataloged in the U.S. Government catalog under NSN 4720-00-950-6844. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.