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H4-421-99-0108 — HOSE,NONMETALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

H4-421-99-0108: HOSE,NONMETALLIC.

The HOSE,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE TUBE, special_features: USED FOR OXYGEN AIRBREATHING, inside_surface_condition: SMOOTH, cross-sectional_shape_style: ROUND, measuring_method_and_length: 18.000 INCHES NOMINAL WORKING IN. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-275-6180, 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
H4-421-99-0108
NSN: 4720-01-275-6180
FSC: 4720 — Hose and Flexible Tubing
CAGE: 62618 — GREENFIELD COMPRESSION INC. (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE TUBE
special_featuresUSED FOR OXYGEN AIRBREATHING
inside_surface_conditionSMOOTH
cross-sectional_shape_styleROUND
measuring_method_and_length18.000 INCHES NOMINAL WORKING IN
NSN4720-01-275-6180
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: H4-421-99-0108 · 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: 18.000 INCHES NOMINAL WORKING IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE SURFACE CONDITION: SMOOTH
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE TUBE
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH18.000 INCHES NOMINAL WORKING IN
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE SURFACE CONDITIONSMOOTH
SPECIAL FEATURESUSED FOR OXYGEN AIRBREATHING
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE 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 1
E-305MF-18INCHReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 H4-421-99-0108?
H4-421-99-0108 is a HOSE,NONMETALLIC.
What parts can replace H4-421-99-0108?
There is 1 known substitute for H4-421-99-0108: E-305MF-18INCH. Substitute compatibility should be verified for your specific system.
What is the NSN for H4-421-99-0108?
H4-421-99-0108 is cataloged in the U.S. Government catalog under NSN 4720-01-275-6180. 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.