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181A332 — HOSE,AIR DUCT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

181A332: HOSE,AIR DUCT.

The HOSE,AIR DUCT is a the manufacturer industrial component. Key specifications include material: FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR SECOND PLY, wall_thickness: 0.060 INCHES NOMINAL IN, connection_type: PLAIN BOTH ENDS, inside_diameter: 6.750 INCHES NOMINAL FIRST END IN, style_designator: SLEEVE SECTION, cross-sectional_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-398-3358, 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
181A332
NSN: 4720-01-398-3358
FSC: 4720 — Hose and Flexible Tubing
CAGE: 03640 — LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS (USA)
SPECIFICATIONS
materialFIBERGLASS AND RUBBER CHLOROPRENE CLASS CR SECOND PLY
wall_thickness0.060 INCHES NOMINAL IN
connection_typePLAIN BOTH ENDS
inside_diameter6.750 INCHES NOMINAL FIRST END IN
style_designatorSLEEVE SECTION
cross-sectional_shape_styleROUND
NSN4720-01-398-3358
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 181A332 · 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
•
CONNECTION TYPE: PLAIN BOTH ENDS
•
STYLE DESIGNATOR: SLEEVE SECTION
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
WALL THICKNESS: 0.060 INCHES NOMINAL IN
•
INSIDE DIAMETER: 6.750 INCHES NOMINAL FIRST END IN
•
MATERIAL: FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR SECOND PLY
TECHNICAL CHARACTERISTICS
CONNECTION TYPEPLAIN BOTH ENDS
STYLE DESIGNATORSLEEVE SECTION
CROSS-SECTIONAL SHAPE STYLEROUND
WALL THICKNESS0.060 INCHES NOMINAL IN
INSIDE DIAMETER6.750 INCHES NOMINAL FIRST END IN
MATERIALFIBERGLASS AND RUBBER CHLOROPRENE CLASS CR SECOND PLY
MATERIALFIBERGLASS AND RUBBER CHLOROPRENE CLASS CR FIRST PLY
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 181A332?
181A332 is a HOSE,AIR DUCT.
What is the NSN for 181A332?
181A332 is cataloged in the U.S. Government catalog under NSN 4720-01-398-3358. 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.