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558373 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

558373: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 1.635 INCHES NOMINAL IN, material: ALUMINUM ALLOY 6061, design_type: TUBULAR, orifice_diameter: 0.250 INCHES NOMINAL IN, outside_diameter: 0.565 INCHES NOMINAL IN, thread_provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-738-9199, 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
558373
NSN: 4730-00-738-9199
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
length1.635 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061
design_typeTUBULAR
orifice_diameter0.250 INCHES NOMINAL IN
outside_diameter0.565 INCHES NOMINAL IN
thread_provisionUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
surface_treatmentANODIZE
material_document_and_classificationQQ-A-200, T6 FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationAMS 2468 ASSN STD SINGLE TREATMENT RESPONSE AND UNITED AIRCRAFT SPEC NO. HS392 MFR REF SINGLE TREATMENT RESPONSE
NSN4730-00-738-9199
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 558373 · 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: 1.635 INCHES NOMINAL IN
•
THREAD PROVISION: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2468 ASSN STD SINGLE TREATMENT RESPONSE AND UNITED AIRCRAFT SPEC NO. HS392 MFR REF SINGLE TREATMENT RESPONSE
•
DESIGN TYPE: TUBULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200, T6 FED SPEC SINGLE MATERIAL RESPONSE
•
OUTSIDE DIAMETER: 0.565 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM ALLOY 6061
TECHNICAL CHARACTERISTICS
LENGTH1.635 INCHES NOMINAL IN
THREAD PROVISIONUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2468 ASSN STD SINGLE TREATMENT RESPONSE AND UNITED AIRCRAFT SPEC NO. HS392 MFR REF SINGLE TREATMENT RESPONSE
DESIGN TYPETUBULAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200, T6 FED SPEC SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER0.565 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE
MATERIALALUMINUM ALLOY 6061
ORIFICE DIAMETER0.250 INCHES NOMINAL IN
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 558373?
558373 is a RESTRICTOR,FLUID FLOW.
What is the NSN for 558373?
558373 is cataloged in the U.S. Government catalog under NSN 4730-00-738-9199. This indicates validated use in U.S. government and defense supply chains.
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