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U04138 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

U04138: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 30.0 MILLIMETERS NOMINAL MM, material: STEEL CORROSION RESISTING, design_type: TUBULAR, orifice_diameter: 1.2 MILLIMETERS NOMINAL MM, outside_diameter: 18.0 MILLIMETERS NOMINAL MM, thread_provision: UNTHREADED FIRST PROVISION. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-561-5022, 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
U04138
NSN: 4730-01-561-5022
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 2J641 — DH INSTRUMENTS INC. (USA)
SPECIFICATIONS
length30.0 MILLIMETERS NOMINAL MM
materialSTEEL CORROSION RESISTING
design_typeTUBULAR
orifice_diameter1.2 MILLIMETERS NOMINAL MM
outside_diameter18.0 MILLIMETERS NOMINAL MM
thread_provisionUNTHREADED FIRST PROVISION
surface_treatmentPASSIVATE
part_name_assigned_by_controlling_agencySEAT, MANIFOLD HF2-LM9
NSN4730-01-561-5022
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: U04138 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LENGTH: 30.0 MILLIMETERS NOMINAL MM
•
THREAD PROVISION: UNTHREADED FIRST PROVISION
•
DESIGN TYPE: TUBULAR
•
OUTSIDE DIAMETER: 18.0 MILLIMETERS NOMINAL MM
•
SURFACE TREATMENT: PASSIVATE
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
LENGTH30.0 MILLIMETERS NOMINAL MM
THREAD PROVISIONUNTHREADED FIRST PROVISION
DESIGN TYPETUBULAR
OUTSIDE DIAMETER18.0 MILLIMETERS NOMINAL MM
SPECIAL FEATURESNHA IS CAGE 2J641, PN 402190; ITEM IS CONE SHAPED ON ONE END FOR 12MM THEN TUBULAR SHAPED FOR REMAINDER OF LENGTH WITH A 13MM DIA; INSIDE OPENING ON CONE END IS 9.6MM DIA FOR 8MM THEN BECOMES 6.35MM FOR 25MM THEN BECOMES 1.20MM DIA MM
SURFACE TREATMENTPASSIVATE
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAT, MANIFOLD HF2-LM9
MATERIALSTEEL CORROSION RESISTING
ORIFICE DIAMETER1.2 MILLIMETERS NOMINAL MM
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is U04138?
U04138 is a RESTRICTOR,FLUID FLOW.
What is the NSN for U04138?
U04138 is cataloged in the U.S. Government catalog under NSN 4730-01-561-5022. This indicates validated use in U.S. government and defense supply chains.
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