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16666 — HOSE ASSEMBLY,NONMETALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

16666: HOSE ASSEMBLY,NONMETALLIC.

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include length: 278.0 MILLIMETERS NOMINAL MM, hole_quantity: 12, connection_type: THREADED INTERNAL PIPE FIRST END, inside_diameter: 0.375 INCHES NOMINAL IN, special_features: AIR HOSE MEETS DOT FVMSS 106, end_item_identification: AIR BRAKE SYSTEM. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-522-0347, 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
16666
NSN: 4720-01-522-0347
NIINs: 015220347, 015890406
FSC: 4720 — Hose and Flexible Tubing
CAGE: 06721 — HALDEX BRAKE PRODUCTS CORPORATION (USA)
SPECIFICATIONS
length278.0 MILLIMETERS NOMINAL MM
hole_quantity12
connection_typeTHREADED INTERNAL PIPE FIRST END
inside_diameter0.375 INCHES NOMINAL IN
special_featuresAIR HOSE MEETS DOT FVMSS 106
end_item_identificationAIR BRAKE SYSTEM
thread_series_designatorNPT FIRST END
cross-sectional_shape_styleROUND
measuring_method_and_length66.000 INCHES NOMINAL OVERALL IN
part_name_assigned_by_controlling_agencyPLATE CURVED CONDYLAR LEFT 12 HOLES 278MM L MM
NSN4720-01-522-0347
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 16666 · 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: 66.000 INCHES NOMINAL OVERALL IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE DIAMETER: 0.375 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: NPT FIRST END
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH66.000 INCHES NOMINAL OVERALL IN
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE DIAMETER0.375 INCHES NOMINAL IN
SPECIAL FEATURESAIR HOSE MEETS DOT FVMSS 106
END ITEM IDENTIFICATIONAIR BRAKE SYSTEM
THREAD SERIES DESIGNATORNPT FIRST END
SUBSTITUTES & CROSS-REFERENCES 1
590750Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 16666?
16666 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 16666?
There is 1 known substitute for 16666: 590750. Substitute compatibility should be verified for your specific system.
What is the NSN for 16666?
16666 is cataloged in the U.S. Government catalog under NSN 4720-01-522-0347. 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.