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591R012 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

591R012: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 0.300 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, design_type: TUBULAR, outside_diameter: 0.382 INCHES NOMINAL IN, special_features: USED IN 1650-01-327-1355, end_item_identification: GALAXY C-5 AIRCRAFT. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-446-9898, 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
591R012
NSN: 4730-01-446-9898
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 98939 — AEROCONTROLEX GROUP, INC. DBA AERO FLUID PRODUCTS (USA)
SPECIFICATIONS
length0.300 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
design_typeTUBULAR
outside_diameter0.382 INCHES NOMINAL IN
special_featuresUSED IN 1650-01-327-1355
end_item_identificationGALAXY C-5 AIRCRAFT
NSN4730-01-446-9898
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 591R012 · 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: 0.300 INCHES NOMINAL IN
•
DESIGN TYPE: TUBULAR
•
OUTSIDE DIAMETER: 0.382 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
LENGTH0.300 INCHES NOMINAL IN
DESIGN TYPETUBULAR
OUTSIDE DIAMETER0.382 INCHES NOMINAL IN
SPECIAL FEATURESUSED IN 1650-01-327-1355
END ITEM IDENTIFICATIONGALAXY C-5 AIRCRAFT
MATERIALSTEEL CORROSION RESISTING
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 591R012?
591R012 is a RESTRICTOR,FLUID FLOW.
What is the NSN for 591R012?
591R012 is cataloged in the U.S. Government catalog under NSN 4730-01-446-9898. 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.