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218100618 — HOSE,AIR DUCT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

218100618: HOSE,AIR DUCT.

The HOSE,AIR DUCT is a the manufacturer industrial component. Key specifications include material: COTTON AND RUBBER CHLOROPRENE CLASS CR THIRD PLY, hose_weight: 8.000 OUNCES PER LINEAR FOOT OZ, connection_type: PLAIN BOTH ENDS, inside_diameter: 3.500 INCHES NOMINAL FIRST END IN, style_designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED, features_provided: OZONE RESISTANT. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-078-9814, 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
218100618
NSN: 4720-00-078-9814
FSC: 4720 — Hose and Flexible Tubing
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialCOTTON AND RUBBER CHLOROPRENE CLASS CR THIRD PLY
hose_weight8.000 OUNCES PER LINEAR FOOT OZ
connection_typePLAIN BOTH ENDS
inside_diameter3.500 INCHES NOMINAL FIRST END IN
style_designatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
features_providedOZONE RESISTANT
cross-sectional_shape_styleROUND
measuring_method_and_length33.000 INCHES NOMINAL OVERALL IN
minimum_inside_bending_radius3.000 INCHES IN
NSN4720-00-078-9814
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 218100618 · 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
SUBSTITUTES & CROSS-REFERENCES 4
206645PC8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A034Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
CWC1XReference document
Same NSN cross-reference
Reference document — Design control — primary reference
77917-34X4PC8Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 218100618?
218100618 is a HOSE,AIR DUCT.
What parts can replace 218100618?
There are 4 known substitutes for 218100618: 206645PC8, A034, CWC1X and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 218100618?
218100618 is cataloged in the U.S. Government catalog under NSN 4720-00-078-9814. 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.