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5666K54 — HOSE,AIR DUCT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

5666K54: HOSE,AIR DUCT.

The HOSE,AIR DUCT is a the manufacturer industrial component. Key specifications include wall_thickness: 0.045 INCHES NOMINAL IN, inside_diameter: 2.000 INCHES NOMINAL BOTH ENDS IN, outside_diameter: 2.437 INCHES NOMINAL BOTH ENDS IN, special_features: TEMPERATURE RANGE 20 TO 160 DEGREES F, style_designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED, cross-sectional_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-559-2470, 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
5666K54
NSN: 4720-01-559-2470
FSC: 4720 — Hose and Flexible Tubing
CAGE: 3A054 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
wall_thickness0.045 INCHES NOMINAL IN
inside_diameter2.000 INCHES NOMINAL BOTH ENDS IN
outside_diameter2.437 INCHES NOMINAL BOTH ENDS IN
special_featuresTEMPERATURE RANGE 20 TO 160 DEGREES F
style_designatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
cross-sectional_shape_styleROUND
minimum_inside_bending_radius2.422 INCHES IN
part_name_assigned_by_controlling_agencyBLO-R-VAC GENERAL PURPOSE PVC DUCT HOSE;BLUE
NSN4720-01-559-2470
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 5666K54 · 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
•
MINIMUM INSIDE BENDING RADIUS: 2.422 INCHES IN
•
STYLE DESIGNATOR: HELICALLY WOUND CONTINOUS WIRE SUPPORTED
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
WALL THICKNESS: 0.045 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.437 INCHES NOMINAL BOTH ENDS IN
•
INSIDE DIAMETER: 2.000 INCHES NOMINAL BOTH ENDS IN
TECHNICAL CHARACTERISTICS
MINIMUM INSIDE BENDING RADIUS2.422 INCHES IN
STYLE DESIGNATORHELICALLY WOUND CONTINOUS WIRE SUPPORTED
CROSS-SECTIONAL SHAPE STYLEROUND
WALL THICKNESS0.045 INCHES NOMINAL IN
OUTSIDE DIAMETER2.437 INCHES NOMINAL BOTH ENDS IN
INSIDE DIAMETER2.000 INCHES NOMINAL BOTH ENDS IN
SPECIAL FEATURESTEMPERATURE RANGE 20 TO 160 DEGREES F
PART NAME ASSIGNED BY CONTROLLING AGENCYBLO-R-VAC GENERAL PURPOSE PVC DUCT HOSE;BLUE
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5666K54?
5666K54 is a HOSE,AIR DUCT.
What is the NSN for 5666K54?
5666K54 is cataloged in the U.S. Government catalog under NSN 4720-01-559-2470. 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.