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3970408 — HOSE,NONMETALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

3970408: HOSE,NONMETALLIC.

The HOSE,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: RUBBER TUBE, exterior_color: BLACK, end_item_identification: WATERCOOLED MANIFOLD AND TURBOCHARGER,6BT5.9;CUMMINS DIESEL, inside_surface_condition: SMOOTH, media_for_which_designed: GAS, EXHAUST SINGLE RESPONSE, cross-sectional_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-357-8730, 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
3970408
NSN: 4720-01-357-8730
FSC: 4720 — Hose and Flexible Tubing
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialRUBBER TUBE
exterior_colorBLACK
end_item_identificationWATERCOOLED MANIFOLD AND TURBOCHARGER,6BT5.9;CUMMINS DIESEL
inside_surface_conditionSMOOTH
media_for_which_designedGAS, EXHAUST SINGLE RESPONSE
cross-sectional_shape_styleROUND
NSN4720-01-357-8730
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 3970408 · 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
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
EXTERIOR COLOR: BLACK
•
INSIDE SURFACE CONDITION: SMOOTH
•
MEDIA FOR WHICH DESIGNED: GAS, EXHAUST SINGLE RESPONSE
•
MATERIAL: RUBBER TUBE
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL SHAPE STYLEROUND
EXTERIOR COLORBLACK
INSIDE SURFACE CONDITIONSMOOTH
MEDIA FOR WHICH DESIGNEDGAS, EXHAUST SINGLE RESPONSE
END ITEM IDENTIFICATIONWATERCOOLED MANIFOLD AND TURBOCHARGER,6BT5.9;CUMMINS DIESEL
MATERIALRUBBER TUBE
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 2
391643800Reference document
Same NSN cross-reference
Reference document — Secondary reference
3916438Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3970408?
3970408 is a HOSE,NONMETALLIC.
What parts can replace 3970408?
There are 2 known substitutes for 3970408: 391643800, 3916438. Substitute compatibility should be verified for your specific system.
What is the NSN for 3970408?
3970408 is cataloged in the U.S. Government catalog under NSN 4720-01-357-8730. 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.